MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73d157aceb0cbefa3a24509f157e8b59c40881acd0e3360d026fee5845e19f2c. 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: 20


Intelligence 20 IOCs YARA 7 File information Comments
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SHA256 hash: 73d157aceb0cbefa3a24509f157e8b59c40881acd0e3360d026fee5845e19f2c
SHA3-384 hash: 4594b51b054b49b32ad2a6dcb6c8bb34498581f10729cce532ba0b1db5d57bcbcecc10762ea0f5ccdba4a7632ef30d1f
SHA1 hash: 4a3cbbe7590ab3e7cd3c40fc62558aaaa251a3e8
MD5 hash: 094a5d7931f64c66d76b0fe5cc728262
humanhash: wyoming-item-utah-social
File name:zBJC.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:985'096 bytes
First seen:2024-09-04 23:06:36 UTC
Last seen:2024-09-05 00:19:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:AfOzlAPrLGY72HiM2AUpGNSfIKsAW1Nunhe2z8JBvR1unEhyDsRiWnze6EzyskDF:AfglYKG2Kwb3unMLBvh8sRdS6rd8Qt
Threatray 970 similar samples on MalwareBazaar
TLSH T1092512542625DA03CA6593B80DB1F6712B7D6FDAA401C7528FEEEEEF7932B044D84183
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 adm1n_usa32
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
402
Origin country :
RO RO
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
zBJC.exe
Verdict:
Malicious activity
Analysis date:
2024-09-04 23:07:32 UTC
Tags:
rat remcos remote evasion
Link:
https://app.any.run/tasks/6d28fffd-f4a3-40a6-a961-33eb45cb6f02

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.DownLoaderNET.710.12267.24301.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d8e81a8e12b8124ac93e3b
Tags:
Discovery Encryption Execution Generic Infostealer Network Static Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed remcos
Link:
https://www.filescan.io/uploads/66d8e817f8c344af734245ce/reports/e1f9553d-674e-4d86-891d-5fcd18f8e257/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/73d157aceb0cbefa3a24509f157e8b59c40881acd0e3360d026fee5845e19f2c
Result
Verdict:
SUSPICIOUS
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/9f738bb2-6bb5-4b8f-84e2-8d8ec3980198
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1504567
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
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
Detected Remcos RAT
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
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 Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1504567 Sample: zBJC.exe Startdate: 05/09/2024 Architecture: WINDOWS Score: 100 46 geoplugin.net 2->46 52 Suricata IDS alerts for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 9 other signatures 2->58 8 zBJC.exe 7 2->8         started        12 OsUSvlotOYeups.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\OsUSvlotOYeups.exe, PE32 8->38 dropped 40 C:\...\OsUSvlotOYeups.exe:Zone.Identifier, ASCII 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmp2D5A.tmp, XML 8->42 dropped 44 C:\Users\user\AppData\Local\...\zBJC.exe.log, ASCII 8->44 dropped 60 Uses schtasks.exe or at.exe to add and modify task schedules 8->60 62 Adds a directory exclusion to Windows Defender 8->62 64 Injects a PE file into a foreign processes 8->64 14 zBJC.exe 2 13 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        66 Multi AV Scanner detection for dropped file 12->66 68 Contains functionalty to change the wallpaper 12->68 70 Machine Learning detection for dropped file 12->70 72 4 other signatures 12->72 24 OsUSvlotOYeups.exe 12->24         started        26 schtasks.exe 12->26         started        signatures6 process7 dnsIp8 48 212.162.149.42, 49735, 7118 UNREAL-SERVERSUS Netherlands 14->48 50 geoplugin.net 178.237.33.50, 49736, 80 ATOM86-ASATOM86NL Netherlands 14->50 74 Detected Remcos RAT 14->74 76 Loading BitLocker PowerShell Module 18->76 28 conhost.exe 18->28         started        30 WmiPrvSE.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        36 conhost.exe 26->36         started        signatures9 process10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/73d157aceb0cbefa3a24509f157e8b59c40881acd0e3360d026fee5845e19f2c
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/73d157aceb0cbefa3a24509f157e8b59c40881acd0e3360d026fee5845e19f2c/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-08-28 06:44:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=opivplhlbs7puorekcprk7ullhcaranm2drtmdicn7xfqrpbt4wa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
063e8dc308fea1f6ab248e3704894c8311b85959301e6389ae5ee55726e3ba2a
RemcosRAT
1c127eebd7d602e5dfd453c901c61d4f41304eaeee33d2aca87db7e08b0a6292
RemcosRAT
1e48f5be58b577bc76423894dadf647800f1da1afab2f3c1c82c08f3b66b4981
RemcosRAT
1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1
RemcosRAT
68d44e1e8d9f36a90db840802afc7b45b08a982431c1b9355771c39e8904f9c7
RemcosRAT
8efed2063a46f5fcc92d1a8c625c79700ee8fef6a4c6a919887ab8c96b8a7073
RemcosRAT
+ 960 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution rat
Link:
https://tria.ge/reports/240904-23y8nayaqq/
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:
212.162.149.42:7118
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/509e2965-99b3-4972-8bad-7f79617f2b68
Unpacked files
SH256 hash:
1106d0726d8817f5fef00f69734ffe445ed1ff634eeb866fef9c81548f08a193
MD5 hash:
5ae01a954215f0603b76161175a93696
SHA1 hash:
ab38580759b866e3c7c439caa4aa1e7ff4bb228d
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/fcd37e30-05ad-4d1a-af80-abcc1554fd8f/
SH256 hash:
230763e5035c2f42d9eefcbe525b5d70f688bca4d279ffee4a94d37a3253747f
MD5 hash:
2b05821fc8218777b39b59329e9da282
SHA1 hash:
a02822c783cedcf4b183766f44ffe6a6c25404ba
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Link:
https://www.unpac.me/results/fcd37e30-05ad-4d1a-af80-abcc1554fd8f/
Parent samples :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 hash:
66c34fb52ab239fdcbd5d61f0b540e45399b986a5379398e0d72014778635226
MD5 hash:
6faa7caee083f4dba03910c95ad29237
SHA1 hash:
8c21b7b035471ed301ef6138c657e865f596f3d3
Link:
https://www.unpac.me/results/fcd37e30-05ad-4d1a-af80-abcc1554fd8f/
SH256 hash:
73d157aceb0cbefa3a24509f157e8b59c40881acd0e3360d026fee5845e19f2c
MD5 hash:
094a5d7931f64c66d76b0fe5cc728262
SHA1 hash:
4a3cbbe7590ab3e7cd3c40fc62558aaaa251a3e8
Link:
https://www.unpac.me/results/fcd37e30-05ad-4d1a-af80-abcc1554fd8f/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/73d157aceb0c/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/73d157aceb0cbefa3a24509f157e8b59c40881acd0e3360d026fee5845e19f2c

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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.

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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