MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a760f8ab66668a69a921639dd9e44bf2bbac1084fd37ed1dc69b68e383c00253. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a760f8ab66668a69a921639dd9e44bf2bbac1084fd37ed1dc69b68e383c00253
SHA3-384 hash: 4842b4d039928b594d54443e8544770564b16f320f7c84f6d30db2a17382bccaace84cf39149c55bfa7c54a5d965a22f
SHA1 hash: f769e570379f442845f3a2673ef539ddd91f2ba3
MD5 hash: 4a623bb07238e12452a1393697d0b238
humanhash: lemon-west-river-shade
File name:KKKDFRGVKGF.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'129'408 bytes
First seen:2022-11-20 06:39:39 UTC
Last seen:2022-11-20 08:37:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:aLHaG79NsDToNMPekMPgnn3WXH1xwsqLiLe3glb4:gxNMtag3eH1uxiq3gl
Threatray 2'860 similar samples on MalwareBazaar
TLSH T113A58D55202DE632DAD41CB17AFD6FC5A439CAEEE8ADC3235C2A1440977540F13E9BAC
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 851a98b4909864c4 (58 x AgentTesla, 43 x Formbook, 34 x RedLineStealer)
Reporter 0xToxin
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
244
Origin country :
IL IL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
KKKDFRGVKGF.exe
Verdict:
Malicious activity
Analysis date:
2022-11-20 06:42:57 UTC
Tags:
trojan rat remcos
Link:
https://app.any.run/tasks/e59e9478-4d49-4223-947d-32f868036168

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/336314/
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.17738.6515.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6379cbc4903ba0eaf36ca7e8/reports/6ecb469c-2460-4746-ab09-dd3e199b2c48/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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f2bde0dc-d101-4836-b9f7-ed32758e1695
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1117481
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
Encrypted powershell cmdline option found
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Snort IDS alert for network traffic
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 750192 Sample: KKKDFRGVKGF.exe Startdate: 20/11/2022 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 9 other signatures 2->48 7 Ytzuwvgjf.exe 4 2->7         started        10 KKKDFRGVKGF.exe 1 7 2->10         started        13 Ytzuwvgjf.exe 3 2->13         started        process3 file4 50 Antivirus detection for dropped file 7->50 52 Multi AV Scanner detection for dropped file 7->52 54 Machine Learning detection for dropped file 7->54 56 Injects a PE file into a foreign processes 7->56 15 powershell.exe 15 7->15         started        17 Ytzuwvgjf.exe 7->17         started        34 C:\Users\user\AppData\...\Ytzuwvgjf.exe, PE32 10->34 dropped 36 C:\Users\...\Ytzuwvgjf.exe:Zone.Identifier, ASCII 10->36 dropped 38 C:\Users\user\AppData\...\KKKDFRGVKGF.exe.log, ASCII 10->38 dropped 58 Encrypted powershell cmdline option found 10->58 19 KKKDFRGVKGF.exe 2 10->19         started        22 powershell.exe 15 10->22         started        24 powershell.exe 15 13->24         started        26 Ytzuwvgjf.exe 13->26         started        signatures5 process6 dnsIp7 28 conhost.exe 15->28         started        40 46.183.216.163, 49699, 8107 DATACLUBLV Latvia 19->40 30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        process8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a760f8ab66668a69a921639dd9e44bf2bbac1084fd37ed1dc69b68e383c00253/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-11-20 04:25:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
18 of 25 (72.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u5qprk3gm2fgtkjbmoo5tzcl6k52yeee7u362hogtnuoha6aajjq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
masslogger
Create hunting rule
Similar samples:
02d7ab6afcf9f15fba169e0d8491499cf27a87fba17a3afd80bd6e5873a9338f
RemcosRAT
15170d0dbe467efc4e38156ed4e03702ae19af44c100d7df7a75c6dbdb7ac587
RemcosRAT
34ff7d92c1c335d251ad12780ccc8fb3a10430fc20cfbb0ff55c40128ffe9a81
RemcosRAT
55f447e7b379e9332e0a455094ae5b45385f5ac2c2c1cc7234faa198f088e7c5
RemcosRAT
623b8e8bd35d6cd14fedbd4d4413a182c41ed764ce147ca3a8b479df4254883e
RemcosRAT
da2ecd61ea932ccab4bcfdeb3be25ad01a54765e5110ed47541ac29204276c83
RemcosRAT
+ 2'850 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:favour persistence rat
Link:
https://tria.ge/reports/221120-he7qcabe36/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
46.183.216.163:8107
127.0.0.1:8107
10.26.173.68:8107
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c240cb65-57ed-4109-ac92-23c4700b8ac3
Unpacked files
SH256 hash:
91582a69989acabd4e51b813aaae85bbe3a261d3bbdf9c5bec2dba43131d9429
MD5 hash:
5f0e9b1d7982234bbcf3b6d322273ea2
SHA1 hash:
3e93d0100c340f7a1d1cd61047af6389dce08971
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/c17949a9-da7c-430f-9b73-9e6697d0c903/
Parent samples :
b7998afdd3784b6ef4128d34cc899377dd1c0457992b04ac71158cc3b6c9706c
df76218154f23a4c1c4dd04fe03fd8aa71b7a9952d77c1ac7cb0e6d944c7917f
b4de787d10b719474c2276e98e3471e5791aaec733cdc7259fc73b95ff602d7b
8af3401ca749e33217eca7aaeb904b7ef9d11ee8c4e1f28d884905c09ba66cbb
a760f8ab66668a69a921639dd9e44bf2bbac1084fd37ed1dc69b68e383c00253
c731fbba9859cc6b6d0f1cca4bce52221618c4f367b52d0c59e8fb9e4a321412
b1f20f0bdd4738cc508084689dfdc0897cb9f5d7f798d66542d22b78921c43ac
SH256 hash:
cbec3dfc3e4e1243993591c56c8b162cc36b5f1f07b1a359c4935490edd0a906
MD5 hash:
15843d63da8b34ab7b584e72eec1fafd
SHA1 hash:
3da6d3f4930d8ad6e30139aa2d845ed1e9339b07
Link:
https://www.unpac.me/results/c17949a9-da7c-430f-9b73-9e6697d0c903/
SH256 hash:
a760f8ab66668a69a921639dd9e44bf2bbac1084fd37ed1dc69b68e383c00253
MD5 hash:
4a623bb07238e12452a1393697d0b238
SHA1 hash:
f769e570379f442845f3a2673ef539ddd91f2ba3
Link:
https://www.unpac.me/results/c17949a9-da7c-430f-9b73-9e6697d0c903/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a760f8ab6666/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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 a760f8ab66668a69a921639dd9e44bf2bbac1084fd37ed1dc69b68e383c00253

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/336314/

Comments