MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a591623837c5fc31a84deb4b3e5698246e2c1421021016456ab5c357449abbc. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5a591623837c5fc31a84deb4b3e5698246e2c1421021016456ab5c357449abbc
SHA3-384 hash: 6b261a3d04514500f2a39551a84f73c39dc6607efcb84efff47d6098b14571d5f6587044d585bfaa7cc2a4cb814457f0
SHA1 hash: 54311d7b545ed9e7e03c1fe69e3e928d7283272e
MD5 hash: 9d86d3a222e042a0f5fae1aa102a2f58
humanhash: golf-floor-kitten-sad
File name:20230108PO-112645829.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'233'408 bytes
First seen:2023-01-10 07:53:11 UTC
Last seen:2023-01-10 09:32:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:1qqhCsJLFscvNVluUqhBzL8np9024GqrFZ+wu7K/Bme0x:guLSclhMpLqp9t43FRG8
TLSH T15145D09237F0E073F5CE533D492827C82D6A6662B2B4F23B5F272D9161958FF7285248
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 0410616969790840 (3 x RemcosRAT, 2 x Formbook, 2 x AgentTesla)
Reporter Anonymous
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
196
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
20230108PO-112645829.exe
Verdict:
Malicious activity
Analysis date:
2023-01-10 07:59:24 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/6d894b7b-4381-4380-83ba-ddabdd100a2c

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/351418/
Detection(s):
SecuriteInfo.com.Trojan.Generic.32928080.16133.21033.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a file in the %temp% directory
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm packed
Link:
https://www.filescan.io/uploads/63bd199c5f356e00329cea2e/reports/19c2e6a9-03e5-4c67-aa0b-a6ad20a00e65/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/d2782cc0-1100-49a4-8b2d-478159cc4e81
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1148412
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
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: 781144 Sample: 20230108po-112645829.exe Startdate: 10/01/2023 Architecture: WINDOWS Score: 100 52 Multi AV Scanner detection for domain / URL 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for URL or domain 2->56 58 9 other signatures 2->58 7 20230108po-112645829.exe 7 2->7         started        11 LVjlcp.exe 5 2->11         started        process3 file4 36 C:\Users\user\AppData\Roaming\LVjlcp.exe, PE32 7->36 dropped 38 C:\Users\user\...\LVjlcp.exe:Zone.Identifier, ASCII 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmp9A81.tmp, XML 7->40 dropped 42 C:\Users\...\20230108po-112645829.exe.log, ASCII 7->42 dropped 60 Uses schtasks.exe or at.exe to add and modify task schedules 7->60 62 Adds a directory exclusion to Windows Defender 7->62 64 Injects a PE file into a foreign processes 7->64 13 20230108po-112645829.exe 2 2 7->13         started        18 powershell.exe 21 7->18         started        20 powershell.exe 21 7->20         started        26 2 other processes 7->26 66 Multi AV Scanner detection for dropped file 11->66 68 Machine Learning detection for dropped file 11->68 22 schtasks.exe 1 11->22         started        24 LVjlcp.exe 11->24         started        signatures5 process6 dnsIp7 46 91.231.84.41, 10929 UKRNAMES-ASUA Ukraine 13->46 48 10.5.187.6, 10929 unknown unknown 13->48 50 127.0.0.1 unknown unknown 13->50 44 C:\ProgramData\remcos\logs.dat, data 13->44 dropped 70 Installs a global keyboard hook 13->70 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5a591623837c5fc31a84deb4b3e5698246e2c1421021016456ab5c357449abbc/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-01-09 08:40:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
25 of 41 (60.98%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ljmrmi4dprp4ggue322lhzljqjdofqkccaqqczcwvnodk5cjvo6a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Link:
https://tria.ge/reports/230110-jrjpqaba9z/
Behaviour
Creates scheduled task(s)
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:
91.231.84.41:10929
10.5.187.6:10929
127.0.0.1:10929
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/edaa9478-5142-442a-88b0-9f21756d5d3d
Unpacked files
SH256 hash:
5f2442f42469378a4ff8378c20df97b0d2fceb1f9fd50007e21bc4a40431c782
MD5 hash:
e54a1fdd57017f5c0511d6d3ee9114c4
SHA1 hash:
e5cdb3a01b4a8830341bd58d4708ae2b0c0ae7f4
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/45792e26-7a09-4931-b10f-62cebe0dc274/
SH256 hash:
1c0072bd0c8fbf0e27d145a0ee7e34428936c2ddeba929d3f60e352891e7e0c6
MD5 hash:
b2d0625c46714e40a6a38238659ea9ed
SHA1 hash:
dc43d5d539eab67b7e3109d0e4894e099a1a18f8
Link:
https://www.unpac.me/results/45792e26-7a09-4931-b10f-62cebe0dc274/
SH256 hash:
46999e9ae3f19453c020b1e2e50312ad18fab284ed1acb75e27ad1e225a39177
MD5 hash:
2b67bb92b65c85e062b7540c37700db6
SHA1 hash:
b48715478c489afbf2cc465a8e90dfab37769ce1
Link:
https://www.unpac.me/results/45792e26-7a09-4931-b10f-62cebe0dc274/
SH256 hash:
be5fb82b8f5e4cfb9c01ec259f6a69c79ddb0b864c8a0f267d45b667d2a04e1e
MD5 hash:
144a9bb93fe9d7801dd608ae8836ba11
SHA1 hash:
4b448d3f714c94f7388170a8024c901702a40808
Link:
https://www.unpac.me/results/45792e26-7a09-4931-b10f-62cebe0dc274/
SH256 hash:
b30c01e006624b31607cba6b50580cf198898a3e0c8bdf686f1dd74872f10bc1
MD5 hash:
45774636a91f932e7e483df80ae52d0b
SHA1 hash:
4566dbcb3a9935b2274e25f409cf03bbf93ff626
Link:
https://www.unpac.me/results/45792e26-7a09-4931-b10f-62cebe0dc274/
SH256 hash:
5a591623837c5fc31a84deb4b3e5698246e2c1421021016456ab5c357449abbc
MD5 hash:
9d86d3a222e042a0f5fae1aa102a2f58
SHA1 hash:
54311d7b545ed9e7e03c1fe69e3e928d7283272e
Link:
https://www.unpac.me/results/45792e26-7a09-4931-b10f-62cebe0dc274/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5a591623837c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/5a591623837c5fc31a84deb4b3e5698246e2c1421021016456ab5c357449abbc

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.

Malspam

RemcosRAT

Executable exe 5a591623837c5fc31a84deb4b3e5698246e2c1421021016456ab5c357449abbc

(this sample)

  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/351418/

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