MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8d86066da3f1e2e29a47ae45d3e1cb0d70af8cf3f0255d3ab0b776464a0617c2. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8d86066da3f1e2e29a47ae45d3e1cb0d70af8cf3f0255d3ab0b776464a0617c2
SHA3-384 hash: 9b73b8f71558f07d7f1816e54d51b0d48db558f77d574a2b9053ae9804da690c937da0b49ba855a1bd177f8fa381374b
SHA1 hash: 1f9ca04cd2ad4195d1fb4e446e348ccad6894004
MD5 hash: 46123eab57aad5c11430519c60097577
humanhash: delta-seven-batman-pennsylvania
File name:contract draft.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'044'480 bytes
First seen:2022-11-29 21:35:53 UTC
Last seen:2022-11-29 23:31:19 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 12288:wKAKUpgJFi3Op4iDRjrnCTxyEd2BM3dR2NZv6DK6EhCof8TBr3dqepjt1mZfSIE6:hAKig3iX++o6R2NN6DXEVSBtBZ5UqvL
Threatray 1'031 similar samples on MalwareBazaar
TLSH T17725AD9232B18473F4DF5279141831CD2D7CB543BAD5E20B6B777A8096029BFF6A8E12
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 James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
199
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
contract draft.exe
Verdict:
Malicious activity
Analysis date:
2022-11-29 21:36:55 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/216daf11-dab1-4a77-ba3a-26410884a09f

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/339810/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.31116.10959.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63867b435be128ac718fb9bb/reports/78508dbd-7dcf-4c14-a056-ae60133b522a/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5fd5f58a-19ec-44fb-bc4f-4017f3129ab3
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1123540
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
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: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 756264 Sample: contract draft.exe Startdate: 29/11/2022 Architecture: WINDOWS Score: 100 39 Malicious sample detected (through community Yara rule) 2->39 41 Sigma detected: Scheduled temp file as task from temp location 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 7 other signatures 2->45 7 contract draft.exe 6 2->7         started        10 ckunzpyVt.exe 5 2->10         started        process3 file4 33 C:\Users\user\AppData\Roaming\ckunzpyVt.exe, PE32 7->33 dropped 35 C:\Users\user\AppData\Local\...\tmp1BC7.tmp, XML 7->35 dropped 37 C:\Users\user\...\contract draft.exe.log, CSV 7->37 dropped 13 schtasks.exe 1 7->13         started        15 contract draft.exe 7->15         started        17 contract draft.exe 7->17         started        25 3 other processes 7->25 47 Multi AV Scanner detection for dropped file 10->47 49 Machine Learning detection for dropped file 10->49 19 schtasks.exe 1 10->19         started        21 ckunzpyVt.exe 10->21         started        23 ckunzpyVt.exe 10->23         started        27 3 other processes 10->27 signatures5 process6 process7 29 conhost.exe 13->29         started        31 conhost.exe 19->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8d86066da3f1e2e29a47ae45d3e1cb0d70af8cf3f0255d3ab0b776464a0617c2/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2022-11-29 16:58:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
30
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rwdam3nd6hrofgshvzc5hyolbvyk7dht6asv2ovqw53emsqgc7ba._file
Verdict:
malicious
Similar samples:
054498f9520c77728c723a72e1657dd9371090e8c9ac67b53e888e5c0d03afed
RemcosRAT
0982bdc34132441865753618ab6e934e3f1a64b7df75cd0b1ece7fb5eb42fe51
RemcosRAT
42cc29de863631b859ceaff6892c25bde8e8212598e8aa3a150f04c1b0e575b5
RemcosRAT
5eef6041b328470091e9275c49ea24dd2c267c89f8938c52386fb056cca53030
RemcosRAT
703b1802d40218a99be7cad5d4661db3d988bf23bd9fcae5f3f851089e4c2c24
RemcosRAT
8fa6091ecf36c321aa568e76eab235f21ff0ca7e5906d75cb8e6c26abd2ef656
RemcosRAT
a5e6caf0fc19953ef3c7ec323b851f1b14bde593f75d0113e0cada70880912df
RemcosRAT
c7ccd6379627a10943964b592a5f38764ae1d0d0d39d17760940871fb3cd2958
RemcosRAT
+ 1'021 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/221129-1fwnksaa92/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Unpacked files
SH256 hash:
a327516357b9fa1a75753b3fbd0030e13f374be7cefcdf983d0b731f278b0c59
MD5 hash:
404efdeb9931733904da07f96fabeb72
SHA1 hash:
7ce363cd612f1d9a90b33ec196c4d0a49cdaee02
Link:
https://www.unpac.me/results/0ad29cfc-117e-4c4d-8606-cd83cbc2a860/
SH256 hash:
c7722848c1b0d906ef84ab1e6f6faa0e9d3ce7b20e0a92e654adbfc443910235
MD5 hash:
0dc0eba5ace8245e7f0651838dbed92b
SHA1 hash:
60bf2b3c612306823c2024fa6f613b47df4134ee
Link:
https://www.unpac.me/results/0ad29cfc-117e-4c4d-8606-cd83cbc2a860/
SH256 hash:
01304c92721e17fea51265cdb72ac92ddfadd72cdf2a69b6316d2fcea6142472
MD5 hash:
c44e1e2ba57bba432e4699bd25bd6be9
SHA1 hash:
05e4522544434a9cd940ca389de70c231c9260ca
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/0ad29cfc-117e-4c4d-8606-cd83cbc2a860/
Parent samples :
8d86066da3f1e2e29a47ae45d3e1cb0d70af8cf3f0255d3ab0b776464a0617c2
a0a124777df35d015c84f61af9a8e4d0dba82120a30fa031b73b885a13d88214
c0499439a0e94bca738d814f9626f30639c96a7664a19e77c3eafda15ddc6ef7
36a2cbe976c9c3fb77f83c521dc34752c4996f45d65c77372949fc62eb21f838
86e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd
01304c92721e17fea51265cdb72ac92ddfadd72cdf2a69b6316d2fcea6142472
519cdc27424d8eb3cac48f7e148ce68123980a03a8692c1139f229fec66a5615
SH256 hash:
8d86066da3f1e2e29a47ae45d3e1cb0d70af8cf3f0255d3ab0b776464a0617c2
MD5 hash:
46123eab57aad5c11430519c60097577
SHA1 hash:
1f9ca04cd2ad4195d1fb4e446e348ccad6894004
Link:
https://www.unpac.me/results/0ad29cfc-117e-4c4d-8606-cd83cbc2a860/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/8d86066da3f1e2e29a47ae45d3e1cb0d70af8cf3f0255d3ab0b776464a0617c2

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

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/339810/

Comments