MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 587b6cfa2c17da4ee0468dbcc1bfe438acaec0c8bae49961e1eaac5c9b889c69. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 587b6cfa2c17da4ee0468dbcc1bfe438acaec0c8bae49961e1eaac5c9b889c69
SHA3-384 hash: 145fe363535e5d5d179fc4e9a58c2ad3bc7c4441b9c43dda039bfd54ca1566e16c67dd0f8375ccfa9d51e36a38f59e70
SHA1 hash: 14cc962c3e5b58209a712b30bd246dbb29e5c8e7
MD5 hash: 13ac6c14ff93c838960a60b64681c838
humanhash: bravo-double-paris-butter
File name:Solicitud de oferta (Universidad hispanoamericana) EUI894 - CRR633.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:340'992 bytes
First seen:2023-04-02 08:02:11 UTC
Last seen:2023-04-02 08:36:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:NH/N6rs0uRlQB1wIViLDCBJztWr1jTV6E+LJAvZG9nvGc:FN/Rdj3S
Threatray 1'913 similar samples on MalwareBazaar
TLSH T1C374D62277A090D6F2EEFEF3D8A31204D9B5B45A5901EE0D4844348E98FD774ED136AE
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 9c3c74c464485445 (8 x RemcosRAT)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Solicitud de oferta (Universidad hispanoamericana) EUI894 - CRR633.exe
Verdict:
Malicious activity
Analysis date:
2023-04-02 08:06:02 UTC
Tags:
remcos
Link:
https://app.any.run/tasks/ed575774-964b-446c-82a4-81046b92ba79

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/379308/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.66199109.19922.11515.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/642936b8d1b7f0d264f9b69a/reports/b45c6f36-090e-4aa7-8adf-3c99ad5e29bf/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/587b6cfa2c17da4ee0468dbcc1bfe438acaec0c8bae49961e1eaac5c9b889c69
Result
Verdict:
MALICIOUS
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:
PureCrypter
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/885eb132-f1ad-4ee7-8f6f-1f1ddb31fd51
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1206529
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 839445 Sample: Solicitud_de_oferta_(Univer... Startdate: 02/04/2023 Architecture: WINDOWS Score: 100 68 Multi AV Scanner detection for domain / URL 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus detection for URL or domain 2->72 74 9 other signatures 2->74 7 Solicitud_de_oferta_(Universidad_hispanoamericana)_EUI894_-_CRR633.exe 16 7 2->7         started        12 Qccdwzzu.exe 3 2->12         started        14 Qccdwzzu.exe 2->14         started        process3 dnsIp4 44 web.fe.1drv.com 7->44 46 onedrive.live.com 7->46 52 2 other IPs or domains 7->52 34 C:\Users\user\AppData\...\Qccdwzzu.exe, PE32 7->34 dropped 36 C:\Users\...\Qccdwzzu.exe:Zone.Identifier, ASCII 7->36 dropped 38 Solicitud_de_ofert...94_-_CRR633.exe.log, ASCII 7->38 dropped 82 Encrypted powershell cmdline option found 7->82 84 Writes to foreign memory regions 7->84 86 Allocates memory in foreign processes 7->86 88 Injects a PE file into a foreign processes 7->88 16 aspnet_compiler.exe 3 14 7->16         started        20 powershell.exe 16 7->20         started        48 web.fe.1drv.com 12->48 54 3 other IPs or domains 12->54 90 Multi AV Scanner detection for dropped file 12->90 92 Machine Learning detection for dropped file 12->92 50 web.fe.1drv.com 14->50 56 3 other IPs or domains 14->56 file5 signatures6 process7 dnsIp8 40 obologs.work.gd 185.156.175.35, 34346, 49697, 49698 M247GB Romania 16->40 42 geoplugin.net 178.237.33.50, 49699, 80 ATOM86-ASATOM86NL Netherlands 16->42 60 Contains functionality to inject code into remote processes 16->60 62 Maps a DLL or memory area into another process 16->62 64 Contains functionality to steal Firefox passwords or cookies 16->64 66 Delayed program exit found 16->66 22 aspnet_compiler.exe 1 16->22         started        25 aspnet_compiler.exe 16->25         started        27 aspnet_compiler.exe 16->27         started        31 32 other processes 16->31 29 conhost.exe 20->29         started        signatures9 process10 dnsIp11 76 Tries to steal Instant Messenger accounts or passwords 22->76 78 Tries to steal Mail credentials (via file / registry access) 22->78 58 192.168.2.1 unknown unknown 31->58 80 Tries to harvest and steal browser information (history, passwords, etc) 31->80 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/587b6cfa2c17da4ee0468dbcc1bfe438acaec0c8bae49961e1eaac5c9b889c69/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-04-01 03:23:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
14 of 37 (37.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lb5wz6rmc7ne5ycgrw6mdp7ehcwk5qgixlsjsypb5kwfzg4itruq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1abe11cf0a879b99c092a403e9efedf7ecda8e92c6708c31c799ce36c2da26a8
RemcosRAT
2010a7e1a136a9881ba4db4beb99088ea77ea2997d36e6d1d16fc696b34fda8b
RemcosRAT
6c2e005c4bd6e0ec6402f78c2dbf971a3853ac0dc2bbb6017f6a5e27a8e770d6
RemcosRAT
bc663a12e76623f5bcb297c16a209b0ef5a978f2474ba9027d9ec4601c3fcc16
RemcosRAT
c9ec59e23695adca831f06aca398c511cac81f2fd65c7353f14b4725791ab80a
RemcosRAT
dacbcd625ca7774424759d127d5fd0a02acfd39c9e15caab4b76d64caa6357a4
RemcosRAT
df98e5b50efcf7aedf479030e51ca5b9990fad9f0d20d729bb106198ddee923e
RemcosRAT
+ 1'903 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection persistence rat
Link:
https://tria.ge/reports/230402-jxnwmafc96/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
obologs.work.gd:34346
Unpacked files
SH256 hash:
587b6cfa2c17da4ee0468dbcc1bfe438acaec0c8bae49961e1eaac5c9b889c69
MD5 hash:
13ac6c14ff93c838960a60b64681c838
SHA1 hash:
14cc962c3e5b58209a712b30bd246dbb29e5c8e7
Link:
https://www.unpac.me/results/7eacbd0e-d434-401e-b05f-cac71a35ee1c/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/587b6cfa2c17/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/587b6cfa2c17da4ee0468dbcc1bfe438acaec0c8bae49961e1eaac5c9b889c69

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
Rule name:Suspicious_Macro_Presence
Create hunting rule
Author:Mehmet Ali Kerimoglu (CYB3RMX)
Description:This rule detects common malicious/suspicious implementations.

File information

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

Malspam

RemcosRAT

Executable exe 587b6cfa2c17da4ee0468dbcc1bfe438acaec0c8bae49961e1eaac5c9b889c69

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/379308/

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