MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cc1b3f4781e52795a027671e7248ac7b4a4346f104795fd2aa341768c6434cf4. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cc1b3f4781e52795a027671e7248ac7b4a4346f104795fd2aa341768c6434cf4
SHA3-384 hash: 0e78bc1e4c1627cbe66b149058e6c250408ddc2b24ffe792c6e4b4144f38145e885038b065c2098045b775e6e92a9584
SHA1 hash: d47ee4df9fdb8f07617a39ad1afcb9663f77a7ed
MD5 hash: 89364609fd16083bee71ef57b727419e
humanhash: lima-beer-foxtrot-tennis
File name:file
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'499'072 bytes
First seen:2022-12-02 15:30:54 UTC
Last seen:2022-12-02 17:36:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:zDMtXxVbLXWKCf59BuJ2ZbdeKmz4EtU1LfmtU0f4sYyK1M541zwzou+HoO:zD6X71Cf56JabdeKm0EG1LfJ0f4rL1Mu
TLSH T148C53303660144E7C6B18D3BF67BC685ACA44D26AD4DBE0B4BFE390307F7B06679641A
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 jstrosch
Tags:.NET exe MSIL RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-12-02 15:32:07 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/f6626d33-9ba4-4a10-bcaa-5d3d1f552ed8

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/341935/
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.5113.6526.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Launching a process
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/638a1a380c6473d1671901b1/reports/fac0ef12-23a7-4ec4-b1d0-a1772acba6dc/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:
Suspicious
Link:
https://analyze.intezer.com/analyses/3b7c8627-8ceb-4bea-8959-92e7aad0884f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1126603
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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 dnsIp2 2 Behavior Graph ID: 759327 Sample: file.exe Startdate: 02/12/2022 Architecture: WINDOWS Score: 100 35 mazhararyousaf.ddns.net 2->35 39 Multi AV Scanner detection for domain / URL 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 10 other signatures 2->45 8 file.exe 7 2->8         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\Aimvvmkdck.exe, PE32 8->27 dropped 29 C:\Users\...\Aimvvmkdck.exe:Zone.Identifier, ASCII 8->29 dropped 31 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 8->31 dropped 47 Creates an undocumented autostart registry key 8->47 49 Encrypted powershell cmdline option found 8->49 51 Injects a PE file into a foreign processes 8->51 12 file.exe 2 2 8->12         started        17 powershell.exe 16 8->17         started        19 powershell.exe 13 8->19         started        21 file.exe 8->21         started        signatures6 process7 dnsIp8 37 mazhararyousaf.ddns.net 107.167.244.51, 49696, 49697, 49698 HUGESERVER-NETWORKSUS United States 12->37 33 C:\ProgramData\remcos\logs.dat, data 12->33 dropped 53 Installs a global keyboard hook 12->53 23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cc1b3f4781e52795a027671e7248ac7b4a4346f104795fd2aa341768c6434cf4/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-12-02 10:49:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zqnt6r4b4utzlibhm4phesfmpnfegrxrar4v7uvkgqlwrrsdjt2a._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:weekend rat
Link:
https://tria.ge/reports/221202-sx3jfsag89/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
mazhararyousaf.ddns.net:50484
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/1dcb987e-1e96-46bd-8f68-5550e468dfd5
Unpacked files
SH256 hash:
0efb1ffb3ccc982a16a43b3fb5ec0caf0d2ed5d82c0f9a6db1f1bf66cca60779
MD5 hash:
b8e5278c033f3353efa2bb9514271b8f
SHA1 hash:
9201da809880e00c5f0a748e50be749889dff56f
Link:
https://www.unpac.me/results/8eeabdbb-6663-4739-aaf1-b62d5dca6f42/
SH256 hash:
6565aadc65c863a866d13132199aa36ac1ade9c45d77b2abb187c3a1e55d3fe3
MD5 hash:
600dc06cd018002309594dc2fb96383f
SHA1 hash:
0687ac0335c3d55c08808d4de4ff4f03e61a0f77
Link:
https://www.unpac.me/results/8eeabdbb-6663-4739-aaf1-b62d5dca6f42/
SH256 hash:
f59e8d5e2e3e04183472dfbeba5e56516119292318d22a6b9a5e5acee7d659d4
MD5 hash:
25df9663ec3e57ebba3d1f5c15b0fc28
SHA1 hash:
04c79d86c6211c0b1a933a9f674f48ea7898648a
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/8eeabdbb-6663-4739-aaf1-b62d5dca6f42/
SH256 hash:
cc1b3f4781e52795a027671e7248ac7b4a4346f104795fd2aa341768c6434cf4
MD5 hash:
89364609fd16083bee71ef57b727419e
SHA1 hash:
d47ee4df9fdb8f07617a39ad1afcb9663f77a7ed
Link:
https://www.unpac.me/results/8eeabdbb-6663-4739-aaf1-b62d5dca6f42/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cc1b3f4781e5/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cc1b3f4781e52795a027671e7248ac7b4a4346f104795fd2aa341768c6434cf4

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.

Web download

RemcosRAT

Executable exe cc1b3f4781e52795a027671e7248ac7b4a4346f104795fd2aa341768c6434cf4

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/341935/

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