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mstsc.exe

Malicious Library PE32 PE File
  1. Resubmit sample
Category Machine Started Completed
FILE s1_win7_x6401 Aug. 31, 2021, 12:47 p.m. Aug. 31, 2021, 12:54 p.m.
Size 278.0KB
Type PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows
MD5 8ffdda74390bca8ecb399d1b37868977
SHA256 8fad3190f946b88c729be6cd98c87b9bdc5ee9ed966b5c89776665a316471ad9
CRC32 F3C20741
ssdeep 6144:pRVTg7nOngOY9zX1slOmfX3QWRrb3+2cv:pjUyncdX1slOmfnbOl
Yara
  • PE_Header_Zero - PE File Signature
  • Malicious_Library_Zero - Malicious_Library
  • IsPE32 - (no description)

Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action
111.90.151.16 Active Moloch
164.124.101.2 Active Moloch

Suricata Alerts

Flow SID Signature Category
TCP 192.168.56.101:49200 -> 111.90.151.16:81 2032945 ET MALWARE Cobalt Strike Beacon Observed (MASB UA) Malware Command and Control Activity Detected
TCP 192.168.56.101:49202 -> 111.90.151.16:81 2032945 ET MALWARE Cobalt Strike Beacon Observed (MASB UA) Malware Command and Control Activity Detected

Suricata TLS

No Suricata TLS

Time & API Arguments Status Return Repeated

GetComputerNameA

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

NtAllocateVirtualMemory

 process_identifier: 1108
region_size: 253952
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00a10000
allocation_type: 12288 (MEM_COMMIT|MEM_RESERVE)
process_handle: 0xffffffff
1 0 0
description mstsc.exe tried to sleep 171 seconds, actually delayed analysis time by 171 seconds
Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

 process_identifier: 1108
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 212992
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x00960000
process_handle: 0xffffffff
1 0 0
host 111.90.151.16
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Trojan.Heur.rCW@IjUrmeb
FireEye Generic.mg.8ffdda74390bca8e
McAfee GenericRXMO-OO!8FFDDA74390B
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
Cybereason malicious.4390bc
Cyren W32/Diple.F.gen!Eldorado
Symantec Backdoor.Cobalt
ESET-NOD32 a variant of Win32/Rozena.AMZ
APEX Malicious
ClamAV Win.Trojan.CobaltStrike-7899872-1
Kaspersky HEUR:Trojan.Win32.CobaltStrike.gen
BitDefender Gen:Trojan.Heur.rCW@IjUrmeb
NANO-Antivirus Trojan.Win32.Rozena.hpcmlv
Avast Win32:HacktoolX-gen [Trj]
Tencent Hacktool.Win32.CobaltStrike.za
Ad-Aware Gen:Trojan.Heur.rCW@IjUrmeb
TACHYON Trojan/W32.Agent.284672.IN
Emsisoft Trojan.Rozena (A)
DrWeb BackDoor.Siggen2.247
TrendMicro Trojan.Win32.COBALT.SM
McAfee-GW-Edition BehavesLike.Win32.Trojan.dh
Sophos ML/PE-A + ATK/Cobalt-CC
Ikarus Trojan.Win32.Rozena
Avira TR/Crypt.XPACK.Gen7
Antiy-AVL Trojan/Generic.ASMalwS.30CAC8E
Gridinsoft Trojan.Win32.Gen.oa!s1
Microsoft Trojan:Win32/Cobaltstrike.MK!MTB
ViRobot Trojan.Win32.Cobalt.284672.A
GData Gen:Trojan.Heur.rCW@IjUrmeb
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.CobaltStrike.R329694
Acronis suspicious
BitDefenderTheta AI:Packer.594089D91B
ALYac Gen:Trojan.Heur.rCW@IjUrmeb
MAX malware (ai score=88)
VBA32 Trojan.CobaltStrike
Malwarebytes Backdoor.Rozena
TrendMicro-HouseCall Trojan.Win32.COBALT.SM
Rising Backdoor.CobaltStrike!1.D049 (CLASSIC)
Yandex Trojan.GenAsa!/C5jzoNrl5s
SentinelOne Static AI - Malicious PE
eGambit Unsafe.AI_Score_97%
Fortinet W32/Generic.AP.118EACE!tr
AVG Win32:HacktoolX-gen [Trj]
CrowdStrike win/malicious_confidence_90% (D)
MaxSecure Trojan.Malware.300983.susgen