MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e
SHA3-384 hash: ca813d760c656baafcce5be7492b6ab5d4507a70d4664086e337555675b8dfc0f65a0f0fb5a85ff197e6f3f673912552
SHA1 hash: 21cf02ec5fa8d8f4bc97803e02c3e638d51b69bd
MD5 hash: ae75577913968ec41742093de9a8f00d
humanhash: delta-mountain-mobile-lake
File name:AWB 411744484099.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:868'352 bytes
First seen:2024-09-16 09:21:20 UTC
Last seen:2024-09-23 12:34:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:pnus9xWJ4JKWk4hSKP57dJNHwHXgKp2+zA:pnusSJEFtZdJNoXgizA
Threatray 4'283 similar samples on MalwareBazaar
TLSH T17E05231BB365C329E9FA17BA854CE2C19371C5763026E7E96DD090CE6963B220711F2F
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
4
# of downloads :
437
Origin country :
CH CH
Vendor Threat Intelligence
Detection(s):
Win.Dropper.Nanocore-10025638-0
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66e7f8bc71e91b3281ba0ae9
Tags:
Discovery Execution Generic Infostealer Network Static Stealth
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed remcos
Link:
https://www.filescan.io/uploads/66e7f8bc3c9389b729b87504/reports/1614a98a-777d-42d3-94c4-bca129302b82/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e
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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3d99be1d-5ddc-420d-9149-c119d81f475f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1511769
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1511769 Sample: AWB 411744484099.exe Startdate: 16/09/2024 Architecture: WINDOWS Score: 100 42 geoplugin.net 2->42 50 Multi AV Scanner detection for domain / URL 2->50 52 Suricata IDS alerts for network traffic 2->52 54 Found malware configuration 2->54 56 13 other signatures 2->56 8 GiyNXejQVN.exe 5 2->8         started        11 AWB 411744484099.exe 7 2->11         started        signatures3 process4 file5 58 Antivirus detection for dropped file 8->58 60 Multi AV Scanner detection for dropped file 8->60 62 Contains functionalty to change the wallpaper 8->62 66 6 other signatures 8->66 14 schtasks.exe 1 8->14         started        16 GiyNXejQVN.exe 8->16         started        34 C:\Users\user\AppData\...behaviorgraphiyNXejQVN.exe, PE32 11->34 dropped 36 C:\Users\...behaviorgraphiyNXejQVN.exe:Zone.Identifier, ASCII 11->36 dropped 38 C:\Users\user\AppData\Local\Temp\tmpCBA.tmp, XML 11->38 dropped 40 C:\Users\user\...\AWB 411744484099.exe.log, ASCII 11->40 dropped 64 Adds a directory exclusion to Windows Defender 11->64 18 powershell.exe 23 11->18         started        21 AWB 411744484099.exe 2 13 11->21         started        24 schtasks.exe 1 11->24         started        signatures6 process7 dnsIp8 26 conhost.exe 14->26         started        48 Loading BitLocker PowerShell Module 18->48 28 WmiPrvSE.exe 18->28         started        30 conhost.exe 18->30         started        44 172.93.220.148, 45682, 49706 XTOM-AS-JPxTomJP United States 21->44 46 geoplugin.net 178.237.33.50, 49708, 80 ATOM86-ASATOM86NL Netherlands 21->46 32 conhost.exe 24->32         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-09-16 08:38:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vhkah36t2hkxics3dwfa22iuek2m5xqqmjsug72tgur7fv52yfxa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
6f19b81c0a43cadb5d5447e3dc0485c04fd400d4a0656ff4af092ab9faac7213
RemcosRAT
bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351
RemcosRAT
e67ae0c8bca17f912e1fdcc8dacac7e967ac9dfcfc031d944663043c99f32ea7
RemcosRAT
+ 4'273 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:3456789 discovery execution rat
Link:
https://tria.ge/reports/240916-lbwqfszdqf/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Malware Config
C2 Extraction:
172.93.220.148:45682
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9116648b-9c8b-4a5b-b184-75aee01559fe
Unpacked files
SH256 hash:
1b727719d548c93b677a6e55184ae74bc4a85e2e217289634f563516327e8c0d
MD5 hash:
f971f6bb7308654f0013bfc2622b5399
SHA1 hash:
ddca047095e2c0160bed312c9447f74b729bd111
Link:
https://www.unpac.me/results/43ad3c0b-1c28-4f0e-b526-ee4c20d35484/
Parent samples :
67f4b6cba186520b5247fa0ec23e129dd20c51640662108c2b9db61cf968f17d
bc5ee788c33389a426c9b5b10405a41a83f6875864bf09b0de6df15ab88cfbda
3bd3c438394939146b7e081e05cd0973bcc7c7d01f624502f70ff7f7da986a41
SH256 hash:
5a11cf64570270a08dfec517b82e56697906829c6ea3dde1558ddfa0d3866d6b
MD5 hash:
adaef7d32557395a015a75572cb66856
SHA1 hash:
78633c9c78f5fbf894bb4e5ce081cfd2cdf30336
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/43ad3c0b-1c28-4f0e-b526-ee4c20d35484/
SH256 hash:
8b57a0bf569967168f71c65a9a3fea76d712a114ed75bbf2b5fe50009cef7b1d
MD5 hash:
e14b56671ab9359a74544abff82db87e
SHA1 hash:
06f995c44f40d2655cb00f753a791421896e107e
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/43ad3c0b-1c28-4f0e-b526-ee4c20d35484/
Parent samples :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 hash:
a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e
MD5 hash:
ae75577913968ec41742093de9a8f00d
SHA1 hash:
21cf02ec5fa8d8f4bc97803e02c3e638d51b69bd
Link:
https://www.unpac.me/results/43ad3c0b-1c28-4f0e-b526-ee4c20d35484/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a9d403efd3d1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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.

Malspam

RemcosRAT

Executable exe a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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