MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7998afdd3784b6ef4128d34cc899377dd1c0457992b04ac71158cc3b6c9706c. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


RemcosRAT


Vendor detections: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: b7998afdd3784b6ef4128d34cc899377dd1c0457992b04ac71158cc3b6c9706c
SHA3-384 hash: 237bf661cc06f9d856e6ec9e8893d1a64844ccacff68cd40ef314e77d1b60ea126d590b2275ef96f12212be5ed4964f5
SHA1 hash: acc62020c48aa15f41db390975385a141db1acbd
MD5 hash: f92ff79398c7960085531791e5f50546
humanhash: sweet-zebra-mexico-fix
File name:SecuriteInfo.com.Heuristic.HEUR.AGEN.1202477.8397.18764
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'093'056 bytes
First seen:2022-11-10 02:44:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:WrTksXIss2KBY0bvnkNpW9Jl+E8cI8E/52Y:WrbIFy0bcrWLPQ8y
Threatray 2'665 similar samples on MalwareBazaar
TLSH T197A5332F8931C10EF66F797FCA96A9D225F38C65632BD127059D3FA06C3AA14B4D3142
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 31d89c92929ed831 (19 x RemcosRAT, 6 x Formbook, 2 x AgentTesla)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Heuristic.HEUR.AGEN.1202477.8397.18764
Verdict:
Malicious activity
Analysis date:
2022-11-10 02:45:44 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/9cdd0211-fbde-41a5-a4aa-2de93572ff88

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/331576/
Detection(s):
SecuriteInfo.com.Heuristic.HEUR.AGEN.1202477.8397.18764.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/636c65b07662ecf10839846f/reports/455c0c8e-64f0-4b70-b0b0-d15fa27ad022/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2b57f68b-5e4b-4702-a48e-0b463d625135
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1110304
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Snort IDS alert for network traffic
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 742987 Sample: SecuriteInfo.com.Heuristic.... Startdate: 10/11/2022 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 8 other signatures 2->48 7 SecuriteInfo.com.Heuristic.HEUR.AGEN.1202477.8397.18764.exe 1 7 2->7         started        11 Mbuvbrwo.exe 4 2->11         started        13 Mbuvbrwo.exe 3 2->13         started        process3 file4 34 C:\Users\user\AppData\...\Mbuvbrwo.exe, PE32 7->34 dropped 36 C:\Users\...\Mbuvbrwo.exe:Zone.Identifier, ASCII 7->36 dropped 38 SecuriteInfo.com.H....8397.18764.exe.log, ASCII 7->38 dropped 50 Encrypted powershell cmdline option found 7->50 52 Injects a PE file into a foreign processes 7->52 15 SecuriteInfo.com.Heuristic.HEUR.AGEN.1202477.8397.18764.exe 2 7->15         started        18 powershell.exe 14 7->18         started        20 SecuriteInfo.com.Heuristic.HEUR.AGEN.1202477.8397.18764.exe 7->20         started        54 Antivirus detection for dropped file 11->54 56 Multi AV Scanner detection for dropped file 11->56 58 Machine Learning detection for dropped file 11->58 22 powershell.exe 13 11->22         started        24 Mbuvbrwo.exe 11->24         started        26 powershell.exe 11 13->26         started        signatures5 process6 dnsIp7 40 46.183.216.163, 49703, 8107 DATACLUBLV Latvia 15->40 28 conhost.exe 18->28         started        30 conhost.exe 22->30         started        32 conhost.exe 26->32         started        process8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7998afdd3784b6ef4128d34cc899377dd1c0457992b04ac71158cc3b6c9706c/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-11-10 02:45:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w6myv7otpbfw55asru2mzcmto7orybcxtevqjldrcwgmhnwjobwa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
masslogger
Create hunting rule
Similar samples:
02d7ab6afcf9f15fba169e0d8491499cf27a87fba17a3afd80bd6e5873a9338f
RemcosRAT
15170d0dbe467efc4e38156ed4e03702ae19af44c100d7df7a75c6dbdb7ac587
RemcosRAT
34ff7d92c1c335d251ad12780ccc8fb3a10430fc20cfbb0ff55c40128ffe9a81
RemcosRAT
55f447e7b379e9332e0a455094ae5b45385f5ac2c2c1cc7234faa198f088e7c5
RemcosRAT
623b8e8bd35d6cd14fedbd4d4413a182c41ed764ce147ca3a8b479df4254883e
RemcosRAT
da2ecd61ea932ccab4bcfdeb3be25ad01a54765e5110ed47541ac29204276c83
RemcosRAT
+ 2'655 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:favour persistence rat
Link:
https://tria.ge/reports/221110-c8qq2afhcq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
46.183.216.163:8107
127.0.0.1:8107
10.26.173.68:8107
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/97f9aaa4-60a2-4bbc-b136-872c835748c8
Unpacked files
SH256 hash:
91582a69989acabd4e51b813aaae85bbe3a261d3bbdf9c5bec2dba43131d9429
MD5 hash:
5f0e9b1d7982234bbcf3b6d322273ea2
SHA1 hash:
3e93d0100c340f7a1d1cd61047af6389dce08971
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/afb24090-6da2-44d4-b571-f82154baf53a/
Parent samples :
b7998afdd3784b6ef4128d34cc899377dd1c0457992b04ac71158cc3b6c9706c
df76218154f23a4c1c4dd04fe03fd8aa71b7a9952d77c1ac7cb0e6d944c7917f
b4de787d10b719474c2276e98e3471e5791aaec733cdc7259fc73b95ff602d7b
8af3401ca749e33217eca7aaeb904b7ef9d11ee8c4e1f28d884905c09ba66cbb
a760f8ab66668a69a921639dd9e44bf2bbac1084fd37ed1dc69b68e383c00253
c731fbba9859cc6b6d0f1cca4bce52221618c4f367b52d0c59e8fb9e4a321412
b1f20f0bdd4738cc508084689dfdc0897cb9f5d7f798d66542d22b78921c43ac
SH256 hash:
c91d17d9e32ddcf187971913e643b6f98bcbce45a8a3c2a2730bc06fe3f68d97
MD5 hash:
e25398e44e628494e53388bda559cfe6
SHA1 hash:
23c8aa175bd088e1121e5b7d5f56e85c1857821d
Link:
https://www.unpac.me/results/afb24090-6da2-44d4-b571-f82154baf53a/
SH256 hash:
b7998afdd3784b6ef4128d34cc899377dd1c0457992b04ac71158cc3b6c9706c
MD5 hash:
f92ff79398c7960085531791e5f50546
SHA1 hash:
acc62020c48aa15f41db390975385a141db1acbd
Link:
https://www.unpac.me/results/afb24090-6da2-44d4-b571-f82154baf53a/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b7998afdd378/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b7998afdd3784b6ef4128d34cc899377dd1c0457992b04ac71158cc3b6c9706c

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/331576/

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