MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81adbb94cf5758852ad9d3e7ba4d958b1943715c3837074c7fcaeeee22aadb7b. 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: 13


Intelligence 13 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81adbb94cf5758852ad9d3e7ba4d958b1943715c3837074c7fcaeeee22aadb7b
SHA3-384 hash: c2747e142adcea27aecf78600a123414bbed999b14cbb036a657284e89bba40be3616785f57c99c610a93d2d46c4b352
SHA1 hash: 666c5b23521c1491adeeee26716a1794b09080ec
MD5 hash: 01a6762f4e8956f4446e57f25a04e91b
humanhash: fish-cup-diet-nitrogen
File name:Ziraat Bankas Swift Mesaj.pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'005'087 bytes
First seen:2022-11-15 11:49:15 UTC
Last seen:2022-11-17 03:53:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 29b61e5a552b3a9bc00953de1c93be41 (174 x Formbook, 82 x AgentTesla, 81 x Loki)
ssdeep 24576:JMZYpFjyYoKcd0KPbNoxsdLLltOOr3C1zC+GGOG4emawVl9RJ:iY7IRhldL73H+GS4XawVrn
Threatray 1'178 similar samples on MalwareBazaar
TLSH T10F2523C277CC049BF8092D3514BB9F24872BBF54AD85B8163788F7AB14F36E56AB0185
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 74f48888868e88b4 (12 x SnakeKeylogger, 7 x Formbook, 5 x RemcosRAT)
Reporter abuse_ch
Tags:exe geo RemcosRAT TUR ZiraatBank

Intelligence

File Origin
# of uploads :
2
# of downloads :
198
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Ziraat Bankas Swift Mesaj.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-11-15 12:05:15 UTC
Tags:
autoit remcos
Link:
https://app.any.run/tasks/59cccfb6-ef61-4494-a1cf-cb7145a841ab

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/334268/
Detection(s):
Porcupine.Backdoor.Win32.Remcos.gen.47168.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a window
Creating a file in the %AppData% subdirectories
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63737cec7db879aacbcea542/reports/47d54921-a330-4146-b080-530004655fbd/overview
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/2f142c79-f722-4849-9143-84bf2f6cbea3
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1114162
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found API chain indicative of debugger detection
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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 746860 Sample: Ziraat Bankas Swift Mesaj.pdf.exe Startdate: 15/11/2022 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 6 other signatures 2->46 8 Ziraat Bankas Swift Mesaj.pdf.exe 19 2->8         started        11 rjxwpphivb.exe 2->11         started        process3 file4 32 C:\Users\user\AppData\Local\...\yqmreilkg.exe, PE32 8->32 dropped 14 yqmreilkg.exe 1 2 8->14         started        56 Machine Learning detection for dropped file 11->56 signatures5 process6 file7 34 C:\Users\user\AppData\...\rjxwpphivb.exe, PE32 14->34 dropped 58 Machine Learning detection for dropped file 14->58 60 Found API chain indicative of debugger detection 14->60 62 Maps a DLL or memory area into another process 14->62 18 yqmreilkg.exe 3 17 14->18         started        23 yqmreilkg.exe 14->23         started        signatures8 process9 dnsIp10 36 45.139.105.174, 49712, 5890 CMCSUS Italy 18->36 38 geoplugin.net 178.237.33.50, 49713, 80 ATOM86-ASATOM86NL Netherlands 18->38 30 C:\ProgramData\remcos\logs.dat, data 18->30 dropped 48 Writes to foreign memory regions 18->48 50 Maps a DLL or memory area into another process 18->50 52 Installs a global keyboard hook 18->52 25 svchost.exe 42 18->25         started        28 svchost.exe 19 7 18->28         started        file11 signatures12 process13 signatures14 54 Installs a global keyboard hook 25->54
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81adbb94cf5758852ad9d3e7ba4d958b1943715c3837074c7fcaeeee22aadb7b/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-11-15 09:36:42 UTC
AV detection:
11 of 41 (26.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qgw3xfgpk5mikkwz2pt3utmvrmmug4k4ha3qotd7zlxo4ivk3n5q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
39c927965e14fb38c14b82c66c398f9cac1343d450db26e43c763b08a764b04b
RemcosRAT
5324e064b98586e1f727eac2ab089af2c466e9b702af73d7fff281e17f725ee8
RemcosRAT
73ff4330d94b2b189d52e8129a1ee362185700f3e811355cbb6022944da5b78c
RemcosRAT
8e7d1931cfe215a12acad3beb975cd78099a295a721069b35c05b469e2f703f9
RemcosRAT
aca726e507f4deb478fc351e0466920bbdd0d58b2b5e9433b29110e28cc56750
RemcosRAT
ae86ff848167aff1ce842e1c0e77bea0a84dfcb0ec4f115086c99225775c80c4
RemcosRAT
b45dbf75dd0de5a62cb362bcc26b59cdd6a7adae8a74c71c30e7db9c36b20265
RemcosRAT
c751eef24ba7492781e43c5034f1175ec098ebc72602e68822fd4c09cac0b9bb
RemcosRAT
f39ab4435d56184a143a55aaf080d672d3695f101e4516a31b89b465906e3fb0
RemcosRAT
f3cfe8c3bf473c8603e31287ebe7ed5511a2fc03e9257d159951a3f716a91ce6
RemcosRAT
+ 1'168 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:privateserver persistence rat
Link:
https://tria.ge/reports/221115-nzl72adg66/
Behaviour
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
45.139.105.174:5890
Gathering data
Unpacked files
SH256 hash:
e439f02b72a882498d512689f380e1323c4d8342578fe8608e81061cf4a8aee1
MD5 hash:
3d90ab79b9719aded136b7cd437ebb21
SHA1 hash:
dbec6e868a293cb0bd58d35191b1423ab8942384
Link:
https://www.unpac.me/results/7bdd8c60-e202-42bd-b65d-fc48ce59d73c/
Parent samples :
90e38d684c63fee4e5d7bdd16c4409022bf9edfc7cf266b9e49936962ce37b03
24fca3cd8aad055b2284fdf5c0cd73642b88bb19de7c3137361e46529da5b67f
8a2edeef9978d454882bfb233d9cd77505618b854f7899b27aeb095ff8ebb3f4
cc7cb2ebb12103aea621ec7962819aced4680b4322bc213a9257b36c8f2dab3e
cfa0a176bad0046bd498a5a7f5140ca92734b096c541a54acd1b002f228ec47c
22f34cc0b56ea1709b3af15b41b43fc40fca2b77debb8400108d3f517ee2ed4a
607e8a91c76f444784c2cbc1090cf8724d882d9861641a1f6e0de6b2b9401859
2de4a8c16d3643a3c58c63f4e7df2836919316635c05718dac1e474b6eb7fe29
ec61895ef8af01ff00970e46f7ba98c24bf9079d71e09d3c18576f1a9efc93c2
c1955052a26634f3571423dc64d3fd10c55fdb27f29eb3afd292787693ffcf91
4d4f7a1cb34d5309e1c82e7110209c974a08b3e82eaaf7799d7d9a3a176132ca
48860a4eb801109046a591d18809b1ff3e2b658f2a09c6fb36c4948cb88eb939
08ec22dd1d931a9d4194d5e46bc42914e62227c11e9fedce2175fe6a53eb4f92
6bef7c9809b35c7a2111872544e68aa29b8323f5936b6b1122c5f4138cf6e1e8
7e18e5fe9e980c48ad67cc2ce7423e818e15c1256e2ffe4ce85c5cfbd5b30877
5dbc3e721cd340dd80bfa7d0127d920f5f2630aa4b3b3ecfb8d2af9f28f0e208
4fe8bbc88d7a8cc0eec24bd74951f1f00b5127e3899ae53de8dabd6ff417e6db
6b6676267c70fbeb3257f0bb9bce1587f0bdec621238eb32dd9f84b2bcd7e3ea
1ffa8b06cb779360f8c42ccd4527ae3076d25d11b3a90976f04ea430173e9b85
e92f111b8aa01289f72c66585219861e0117c9939de56741cbb234fee55536fe
b69687c4b9aa0c1599840ea90562d3833367e8095addfc725fc2b52fad6ee565
SH256 hash:
71b2aeacdb9e989c0b34c50a9b0c0e2f90abe16e18c46e2cb0ffe07ba7103d21
MD5 hash:
994cec4b046321d6f4d6f6c8cd10209e
SHA1 hash:
19d659be39af2e186658052970e6f76aba5ba03d
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/7bdd8c60-e202-42bd-b65d-fc48ce59d73c/
Parent samples :
68dc5714a90d2f0b2b91d22127aa518ce6667386b133777a0e36fac29d7a19af
81adbb94cf5758852ad9d3e7ba4d958b1943715c3837074c7fcaeeee22aadb7b
SH256 hash:
81adbb94cf5758852ad9d3e7ba4d958b1943715c3837074c7fcaeeee22aadb7b
MD5 hash:
01a6762f4e8956f4446e57f25a04e91b
SHA1 hash:
666c5b23521c1491adeeee26716a1794b09080ec
Link:
https://www.unpac.me/results/7bdd8c60-e202-42bd-b65d-fc48ce59d73c/
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/81adbb94cf5758852ad9d3e7ba4d958b1943715c3837074c7fcaeeee22aadb7b

File information

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

Malspam

RemcosRAT

Executable exe 81adbb94cf5758852ad9d3e7ba4d958b1943715c3837074c7fcaeeee22aadb7b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/334268/

Comments