MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3a2043efc6af7c4ab5141626759c855ae393005862d78c7e325ba585684c5b0. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d3a2043efc6af7c4ab5141626759c855ae393005862d78c7e325ba585684c5b0
SHA3-384 hash: 299d9ed6e692cfe82096bd07c72795817fe234086ea44b8a53040b6a5dd8f0f5d40cf6016aa5091c41b4a9fae1d564d1
SHA1 hash: 90e8a85cae11287632c8b9951427b1e46d810739
MD5 hash: 84b845c3d2ae78c4b89cf2c532f3037d
humanhash: video-lion-queen-march
File name:CONTRACT.EXE
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:582'701 bytes
First seen:2022-12-18 12:52:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 97318da386948415d08cef4a9006d669 (71 x Formbook, 35 x SnakeKeylogger, 26 x AgentTesla)
ssdeep 12288:0cDOrCXLi+hviCrw1kIjGqWggSYvqhH1p6FrW2RvJg2S5:fD1xNrrw1kIyqWviCFrW2Rvy2E
Threatray 2'369 similar samples on MalwareBazaar
TLSH T1C5C42399AAD1C587FC8F52B147EEA3AA7823C3104058C5D72B5A1FF5793C2DB4242B4E
TrID 92.7% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10523/12/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon f4f679b179698cd4 (17 x RemcosRAT, 4 x SnakeKeylogger, 2 x NanoCore)
Reporter cocaman
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
201
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
CONTRACT.EXE
Verdict:
Malicious activity
Analysis date:
2022-12-18 12:54:34 UTC
Tags:
installer rat remcos keylogger
Link:
https://app.any.run/tasks/8aab15ff-1de4-4ee9-b225-b28bebc74ff2

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/347602/
Detection(s):
SecuriteInfo.com.Variant.Jaik.107958.23634.14999.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/639f0d30ea3017b294ce1d6d/reports/1e60fd33-0c78-423e-886d-0d85c13dbfae/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c4b2b12f-6996-48f5-81b7-95ffd0c6083e
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1136530
Signature
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Installs a global keyboard hook
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
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 769258 Sample: CONTRACT.EXE.exe Startdate: 18/12/2022 Architecture: WINDOWS Score: 100 43 Multi AV Scanner detection for domain / URL 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 4 other signatures 2->49 7 CONTRACT.EXE.exe 19 2->7         started        10 xpfxuocnsbtmj.exe 2->10         started        13 xpfxuocnsbtmj.exe 2->13         started        process3 file4 29 C:\Users\user\AppData\Local\...\vujonlni.exe, PE32 7->29 dropped 15 vujonlni.exe 1 2 7->15         started        53 Multi AV Scanner detection for dropped file 10->53 19 WerFault.exe 3 10 10->19         started        21 WerFault.exe 10 13->21         started        signatures5 process6 file7 31 C:\Users\user\AppData\...\xpfxuocnsbtmj.exe, PE32 15->31 dropped 37 Multi AV Scanner detection for dropped file 15->37 39 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->39 41 Maps a DLL or memory area into another process 15->41 23 vujonlni.exe 2 15 15->23         started        27 vujonlni.exe 15->27         started        signatures8 process9 dnsIp10 33 xpremcuz300622.ddns.net 194.180.48.184, 3542, 49701 LVLT-10753US Germany 23->33 35 geoplugin.net 178.237.33.50, 49702, 80 ATOM86-ASATOM86NL Netherlands 23->35 51 Installs a global keyboard hook 23->51 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d3a2043efc6af7c4ab5141626759c855ae393005862d78c7e325ba585684c5b0/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-12-15 16:18:59 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
14 of 23 (60.87%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2oraipx4nl34jk2rifrgowoikwxdsmafqywxrr7dew5fqvueywya._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1e3d5369ea28851f7013099f82d535b12e3e88c72ae190fdf571fb9beb9e0ace
RemcosRAT
6c0f5a9bf9bfd84be91f3d84335b63ac95ac2b227fedc5de439971577328ac30
RemcosRAT
c03cfddda1ce6811ac0aa6cd6d9957e688a3fd37c02a16c15af285bff2c9b04f
RemcosRAT
c51b5ab4f58954b8e389c8fbd8b7774de8365a5222a6a34eeb2a13d152245b83
RemcosRAT
d412bda38a99d6bbdd30c66e3b5bfa6c1a441ff597c58c9878e8e329ca8c7636
RemcosRAT
d95e5151d6dd5c5c08ae6a5964361933ad2dc0740082143d9db3dff97088afc5
RemcosRAT
f3f99338943e59e1301976550d8f5951e171564ff7b27a726ffedbaf6a96bde9
RemcosRAT
+ 2'359 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:xp_no startup persistence rat
Link:
https://tria.ge/reports/221218-p4l89seh2x/
Behaviour
Suspicious behavior: MapViewOfSection
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:
xpremcuz300622.ddns.net:3542
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3586cd19-5d38-43f2-b06e-2d26bbc84b98
Unpacked files
SH256 hash:
65a1d113f7dc5ec1f3e35c6cd4df378cc412cf71d65deb6b3d0dc3f3b26ddd71
MD5 hash:
ab7e54fec4c511c9de20e31d8415b5cf
SHA1 hash:
a6d52521ffbfc9dad59a7c464c07c7abd983f586
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/5da12f93-435d-44db-87a4-5c5198f6459e/
Parent samples :
98c0c891e2c4aff954bd915bceb34153a4f732ef8b7743162c6faaa079161e84
4f3ac2facaae4e74a303e1c92b36c87372397fa19f93d3025cc6fa5c027a7b29
c03cfddda1ce6811ac0aa6cd6d9957e688a3fd37c02a16c15af285bff2c9b04f
c51b5ab4f58954b8e389c8fbd8b7774de8365a5222a6a34eeb2a13d152245b83
6c0f5a9bf9bfd84be91f3d84335b63ac95ac2b227fedc5de439971577328ac30
6c405e0fb6fa88a355b6addac57f8663af6a0e2256bc8d23da104567360ce6f9
fa965dc6edbb0e244cef4ecab1dabb2d04c9c174e42ac25c60f463237bcea16b
d3a2043efc6af7c4ab5141626759c855ae393005862d78c7e325ba585684c5b0
c7e2ce7b8a6da88127cbb0730c2b8b9869f7f0e6a4ba831e34d1aa18122ce5e2
SH256 hash:
5ab5a3e5da4dfee4e63ba05343d2bd5c7cc97ccb22536222b4f2a3a2df6d8851
MD5 hash:
bd150346b2d1f6ecbcece405e004aeeb
SHA1 hash:
f176c92a8f954f0b24f40a7b0e225cc73f5304f7
Link:
https://www.unpac.me/results/5da12f93-435d-44db-87a4-5c5198f6459e/
SH256 hash:
d3a2043efc6af7c4ab5141626759c855ae393005862d78c7e325ba585684c5b0
MD5 hash:
84b845c3d2ae78c4b89cf2c532f3037d
SHA1 hash:
90e8a85cae11287632c8b9951427b1e46d810739
Link:
https://www.unpac.me/results/5da12f93-435d-44db-87a4-5c5198f6459e/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d3a2043efc6a/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/d3a2043efc6af7c4ab5141626759c855ae393005862d78c7e325ba585684c5b0

File information

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

Malspam

RemcosRAT

img 257d6243a03de6756073e02cfa127cacbce690dbedb254cf9ba17a19ab9630d0

RemcosRAT

Executable exe d3a2043efc6af7c4ab5141626759c855ae393005862d78c7e325ba585684c5b0

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 257d6243a03de6756073e02cfa127cacbce690dbedb254cf9ba17a19ab9630d0
Cape
Cape
https://www.capesandbox.com/analysis/347602/
  
Dropped by
MD5 5b260ff0d4a11eeb94a71c1dabc2869c

Comments