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Guide 2020-06-10
Version history 2020-06-10

Summary | ZeroBOX

ChromeSetup.exe

Malicious Library UPX PE32 PE File DLL

Category	Machine	Started	Completed
FILE	s1_win7_x6403_us	July 28, 2023, 10:22 a.m.	July 28, 2023, 10:30 a.m.

Size	404.2KB
Type	PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
MD5	`6f9433489c234b56f12a5e807ad4bfcb`
SHA256	`dfa04d8d3ce15de46fb7556375eb5ec64fc97d71c2275b6a471c86563ba7be71`
CRC32	`4514AAFC`
ssdeep	`6144:CBe337n8xkABZYQkqIqZ7zz7/3QVgJ9glpKRXhK0tuIAeaPmjJoFGCO:v7LABZYQk3qxIV/GX002WOFlO`
Yara	UPX_Zero - UPX packed file Malicious_Library_Zero - Malicious_Library PE_Header_Zero - PE File Signature IsPE32 - (no description)

ChromeSetup.exe "C:\Users\test22\AppData\Local\Temp\ChromeSetup.exe"
1872

Name	Response	Post-Analysis Lookup
No hosts contacted.

IP Address	Status	Action
No hosts contacted.

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available (1 event)

Time & API	Arguments	Status	Return	Repeated
GlobalMemoryStatusEx July 28, 2023, 10:22 a.m.		1	1	0

The executable contains unknown PE section names indicative of a packer (could be a false positive) (1 event)

section

.ndata

Allocates read-write-execute memory (usually to unpack itself) (2 events)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory July 28, 2023, 10:22 a.m.	process_identifier: 1872 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x10004000 process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory July 28, 2023, 10:22 a.m.	process_identifier: 1872 region_size: 49836032 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x03a40000 allocation_type: 12288 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0xffffffff	1	0	0

Creates executable files on the filesystem (1 event)

file	C:\Users\test22\AppData\Local\Temp\nsbC1E4.tmp\System.dll

Drops an executable to the user AppData folder (1 event)

file	C:\Users\test22\AppData\Local\Temp\nsbC1E4.tmp\System.dll

File has been identified by 27 AntiVirus engines on VirusTotal as malicious (27 events)

Bkav	W32.AIDetectMalware
MicroWorld-eScan	Trojan.GenericKD.68383590
FireEye	Trojan.GenericKD.68383590
McAfee	Artemis!6F9433489C23
Malwarebytes	Trojan.GuLoader.NSIS
Sangfor	Trojan.Win32.Agent.Vgxn
CrowdStrike	win/malicious_confidence_90% (W)
Arcabit	Trojan.Generic.D4137366
Symantec	Packed.NSISPacker!g14
Elastic	malicious (high confidence)
Cynet	Malicious (score: 100)
Kaspersky	HEUR:Trojan.Win32.Guloader.gen
BitDefender	Trojan.GenericKD.68383590
Emsisoft	Trojan.GenericKD.68383590 (B)
TrendMicro	Trojan.Win32.GULOADER.YXDG1Z
McAfee-GW-Edition	Artemis!Trojan
Trapmine	suspicious.low.ml.score
Sophos	Mal/Generic-S
Webroot	W32.Malware.Gen
Microsoft	Trojan:Win32/Casdet!rfn
ZoneAlarm	HEUR:Trojan.Win32.Guloader.gen
GData	Trojan.GenericKD.68383590
MAX	malware (ai score=80)
Cylance	unsafe
Panda	Trj/Chgt.AD
TrendMicro-HouseCall	Trojan.Win32.GULOADER.YXDG1Z
DeepInstinct	MALICIOUS