MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 838943f1ce7de236a0a633dd4a6675a65e5e5cbce86d2a1440ae307d58dee757. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 838943f1ce7de236a0a633dd4a6675a65e5e5cbce86d2a1440ae307d58dee757
SHA3-384 hash: 891822476c547f7e3e64fc9c4c1c1268b1edce9bd8fad6aca1d1eeba4c8ae4546046ef7055470e2452074d1bf372eadd
SHA1 hash: 49fc38e83fe4905946e8a31e40603256c5ebf060
MD5 hash: b8d8eb9a8cfed04b9624e9e3d8c2569d
humanhash: three-blossom-hawaii-muppet
File name:SecuriteInfo.com.Win32.KeyloggerX-gen.21639.22575
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:326'656 bytes
First seen:2023-08-28 10:39:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:15ddSORmAGqepnEsaZ3L+5TlvYrZ/7FWhlLno:15ddSo7eK0EZ/Cl7
Threatray 2'650 similar samples on MalwareBazaar
TLSH T1676429DF2BD41A2FC69F02F5D5414AC8D7B7C26D6297F79567821AB0E84332EA807183
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
322
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Win32.KeyloggerX-gen.21639.22575
Verdict:
Malicious activity
Analysis date:
2023-08-28 10:41:22 UTC
Tags:
rat remcos remote stealer
Link:
https://app.any.run/tasks/50be7be4-4169-465d-ad08-39422f0e6485

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/444893/
Detection(s):
SecuriteInfo.com.Win32.KeyloggerX-gen.21639.22575.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Launching a process
Creating a file
Reading critical registry keys
Creating a file in the %temp% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin packed remcos replace
Link:
https://www.filescan.io/uploads/64ec7986d7ae0984750f5cad/reports/f3505d47-3ea6-44dd-8c81-79d9e545c8d3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/838943f1ce7de236a0a633dd4a6675a65e5e5cbce86d2a1440ae307d58dee757
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:
Dark Crystal RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/60e35fc0-3d0c-42f7-8c57-71ce231d58dd
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1298623
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Contains functionality to modify clipboard data
Found malware configuration
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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1298623 Sample: SecuriteInfo.com.Win32.Keyl... Startdate: 28/08/2023 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 9 other signatures 2->51 7 SecuriteInfo.com.Win32.KeyloggerX-gen.21639.22575.exe 16 5 2->7         started        12 Ykuxfyafp.exe 14 5 2->12         started        14 Ykuxfyafp.exe 2->14         started        process3 dnsIp4 39 qu.ax 45.95.232.89, 443, 49714, 49718 RHC-HOSTINGGB Russian Federation 7->39 33 C:\Users\user\AppData\Roaming\Ykuxfyafp.exe, PE32 7->33 dropped 59 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->59 61 Writes to foreign memory regions 7->61 63 Injects a PE file into a foreign processes 7->63 16 MSBuild.exe 3 13 7->16         started        65 Multi AV Scanner detection for dropped file 12->65 67 Machine Learning detection for dropped file 12->67 20 MSBuild.exe 12->20         started        22 MSBuild.exe 14->22         started        file5 signatures6 process7 dnsIp8 35 172.96.14.58, 49715, 49716, 9181 UNREAL-SERVERSUS Canada 16->35 37 geoplugin.net 178.237.33.50, 49717, 80 ATOM86-ASATOM86NL Netherlands 16->37 41 Contains functionality to modify clipboard data 16->41 43 Maps a DLL or memory area into another process 16->43 24 MSBuild.exe 1 16->24         started        27 MSBuild.exe 2 16->27         started        29 MSBuild.exe 1 16->29         started        31 MSBuild.exe 16->31         started        signatures9 process10 signatures11 53 Tries to steal Instant Messenger accounts or passwords 24->53 55 Tries to steal Mail credentials (via file / registry access) 24->55 57 Tries to harvest and steal browser information (history, passwords, etc) 27->57
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/838943f1ce7de236a0a633dd4a6675a65e5e5cbce86d2a1440ae307d58dee757/
Threat name:
Win32.Trojan.Synder
Create hunting rule
Status:
Malicious
First seen:
2023-08-28 08:20:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qoeuh4oopxrdnifggpouuztvuzpf4xf45bwsufcavyyh2wg645lq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
06f04dab2e4bc0b0b1b876206bc111e71002eae688e45f3ee772a8f71ae39a96
RemcosRAT
180f09c1346f69b5273a595bac15a705cf4a5d15b3699742baf292a5e81050ed
RemcosRAT
2470f5cd9fcdd5fee479668698bb2b5d09e8319caf8ead338a8c776dba14064b
RemcosRAT
2d12bedd8d6cee6c6fbee5ccb9d7dd25fc6693d9d6a7a0207104f94b681b55aa
RemcosRAT
2f6f8d08fcf273fa79b7a13d3b24d4f71bbc9f2fdf6965afd737ccc0d5316429
RemcosRAT
3f0f7847996e9d8ef9f875c1c20dafd17ecb2a3eee860b2d08ac5eabab631b4d
RemcosRAT
4b66b1c337c83ccb79e4862a7a32421fd75a565a59fee1f830d4aae55b64af9a
RemcosRAT
7fd1e285f1e5ce2a63513d7122f54b4c02bec1645aab6ae3b74139a60805bd4c
RemcosRAT
f1373d2222e6c4e03e857f401e582261f0530520e8fe2d6a325743ef73ee9a26
RemcosRAT
+ 2'640 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/230828-mqjj4sab77/
Behaviour
Suspicious use of AdjustPrivilegeToken
Unpacked files
SH256 hash:
838943f1ce7de236a0a633dd4a6675a65e5e5cbce86d2a1440ae307d58dee757
MD5 hash:
b8d8eb9a8cfed04b9624e9e3d8c2569d
SHA1 hash:
49fc38e83fe4905946e8a31e40603256c5ebf060
Link:
https://www.unpac.me/results/1e834823-5c0f-44be-83d2-6a14e5057eff/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/838943f1ce7d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/838943f1ce7de236a0a633dd4a6675a65e5e5cbce86d2a1440ae307d58dee757

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
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.

Cape
Cape
https://www.capesandbox.com/analysis/444893/

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