MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8278a87cb192844a46818c28aba0106879e1c368366fc52064d2c7943f3f197b. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments
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SHA256 hash: 8278a87cb192844a46818c28aba0106879e1c368366fc52064d2c7943f3f197b
SHA3-384 hash: 467a2346a2dbcb7a1c96d19d9ed78f8eb0f7af3f3f8b5e1c04d62ed6cd45fdb4b76eac7eb7c8973cd45c3ba7080ce494
SHA1 hash: c8bb01b669c50e8a13bb0a87548193a4a2274b48
MD5 hash: d85446842044ca52db8884e4003ee4e2
humanhash: seventeen-bacon-mobile-may
File name:TNT Original Invoice.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'005'056 bytes
First seen:2023-09-20 16:54:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'746 x AgentTesla, 19'624 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:2UW1hvtP1Q7FeBj4nbPqkfdmYmWgwiypm05:2UWjvV9IbPqXwWO
Threatray 2'598 similar samples on MalwareBazaar
TLSH T1CF2502253A6C9FE2D27D53F58299898507F6241EA13EE34A4DC374CF6591F808F60BA3
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe RAT RemcosRAT TNT

Intelligence

File Origin
# of uploads :
1
# of downloads :
293
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
TNT Original Invoice.exe
Verdict:
Malicious activity
Analysis date:
2023-09-20 16:57:03 UTC
Tags:
rat remcos remote keylogger
Link:
https://app.any.run/tasks/12f212b3-6d63-4913-bcd7-27483bec53e6

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/450098/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed remcos
Link:
https://www.filescan.io/uploads/650b23e632ffdb7a7a0d709b/reports/161b17be-9d97-4684-8228-05f23aaa92ac/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8278a87cb192844a46818c28aba0106879e1c368366fc52064d2c7943f3f197b
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:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3a6ad57b-fab2-4758-8d3b-19d542dcdcb3
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1311741
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to modify clipboard data
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
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
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
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1311741 Sample: TNT_Original_Invoice.exe Startdate: 20/09/2023 Architecture: WINDOWS Score: 100 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 11 other signatures 2->54 7 CHUviEmlL.exe 5 2->7         started        10 TNT_Original_Invoice.exe 7 2->10         started        process3 file4 58 Multi AV Scanner detection for dropped file 7->58 60 Contains functionality to bypass UAC (CMSTPLUA) 7->60 62 Contains functionalty to change the wallpaper 7->62 68 5 other signatures 7->68 13 schtasks.exe 7->13         started        15 CHUviEmlL.exe 7->15         started        17 svchost.exe 7->17         started        40 C:\Users\user\AppData\Roaming\CHUviEmlL.exe, PE32 10->40 dropped 42 C:\Users\user\AppData\Local\...\tmp68D0.tmp, XML 10->42 dropped 64 Uses schtasks.exe or at.exe to add and modify task schedules 10->64 66 Adds a directory exclusion to Windows Defender 10->66 19 TNT_Original_Invoice.exe 3 17 10->19         started        24 powershell.exe 21 10->24         started        26 powershell.exe 21 10->26         started        28 schtasks.exe 1 10->28         started        signatures5 process6 dnsIp7 30 conhost.exe 13->30         started        44 167.114.189.33, 2404, 49704 OVHFR Canada 19->44 46 geoplugin.net 178.237.33.50, 49705, 80 ATOM86-ASATOM86NL Netherlands 19->46 38 C:\ProgramData\remcos\logs.dat, data 19->38 dropped 56 Installs a global keyboard hook 19->56 32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        36 conhost.exe 28->36         started        file8 signatures9 process10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8278a87cb192844a46818c28aba0106879e1c368366fc52064d2c7943f3f197b/
Threat name:
Win32.Trojan.Vigorf
Create hunting rule
Status:
Malicious
First seen:
2023-09-20 09:11:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qj4kq7frskceurubrqukxiaqnb46dq3igzx4kide2ldzipz7df5q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0d93db96a7c71d216d6d4cb96abad741ecf89db460d2b32c82049471fa9504da
RemcosRAT
104c937fc2b61a982610bc109941759dd8a5e48fbb868d9c03e3c1602e83b593
RemcosRAT
1125f1469e4241cdafae0c0595f8a446eb1a9a7afd107be20deb9f51835d4da9
RemcosRAT
113604a26f601d835c435c7445751145354b2dc4c019bb4b88d4a6b416074a18
RemcosRAT
337ce11e758631b9327321060bea40342ee175113d93e8d293a6e6d08d008509
RemcosRAT
411fc006ebe1724a6bab93d977e183ad283f648960c7dacb3eccfccf689967dc
RemcosRAT
861858ded7f88ccc9998eb6286cf9376fe7509a04901808bc5a3d35b076412a6
RemcosRAT
8a7703a7a13f95e6e58aac075b70bc322355e7f683e04824c17407a1881838cf
RemcosRAT
9549d97eb752358d01342132fd4605531f199ba9a5e9e366dc6063d75ffba5a6
RemcosRAT
ff241eca2063eb38b03d6dbe8d1af4e36536c10399ddcf9fcf1528f343f97f4a
RemcosRAT
+ 2'588 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Link:
https://tria.ge/reports/230920-ve4d5she41/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
167.114.189.33:2404
Unpacked files
SH256 hash:
4c00f6d566b9f3d3f8407d44e477db87926c08fa089a351b165547de5a07d9d9
MD5 hash:
4fb1a7084bad3b1016533fee03610952
SHA1 hash:
d099e51ce5d9790bdc706a6f703294ad595cacb8
Link:
https://www.unpac.me/results/cb4a08df-8b2a-4245-8666-f7c43ad3b498/
SH256 hash:
8c4ef9a381133b65383edabd99c05e4ae457331685f7ffd15f0cbf9b34c965a1
MD5 hash:
870ca41844b563040838139587509c2f
SHA1 hash:
b1be1455423d583d1ecb5564dc9e78f0d08b6ef6
Link:
https://www.unpac.me/results/cb4a08df-8b2a-4245-8666-f7c43ad3b498/
SH256 hash:
7ec118e70613ce2d9aee29cda2918ca710dde346c68d4da75c2ea0402e6d4391
MD5 hash:
1622a62bf6805b2dca82a8632eceac71
SHA1 hash:
071b72a5a1231149dfe4b9fcfa3a6ee49265ab7c
Link:
https://www.unpac.me/results/cb4a08df-8b2a-4245-8666-f7c43ad3b498/
SH256 hash:
8278a87cb192844a46818c28aba0106879e1c368366fc52064d2c7943f3f197b
MD5 hash:
d85446842044ca52db8884e4003ee4e2
SHA1 hash:
c8bb01b669c50e8a13bb0a87548193a4a2274b48
Link:
https://www.unpac.me/results/cb4a08df-8b2a-4245-8666-f7c43ad3b498/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8278a87cb192/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/8278a87cb192844a46818c28aba0106879e1c368366fc52064d2c7943f3f197b

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: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 8278a87cb192844a46818c28aba0106879e1c368366fc52064d2c7943f3f197b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/450098/

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