MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1f95947c7d421aef77f87b95744c6a93c149e203af906b32b3e6002f3331cf3. 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: 19


Intelligence 19 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1f95947c7d421aef77f87b95744c6a93c149e203af906b32b3e6002f3331cf3
SHA3-384 hash: 711a751cb2f1fcf5af26c770120d778ab757a8ff7cf721b32bd34bfcba6e9085a18affd4f446099a537d8d61a699c1fd
SHA1 hash: 4b3d1ce39b0328a76d52dbada6b554b4adfcdc10
MD5 hash: b65cc69f005ea9a571046be27b48edfb
humanhash: ten-skylark-timing-hamper
File name:ORDER_RINNO ALUMINUM.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:868'352 bytes
First seen:2023-11-26 16:51:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:vFoI7QHt+80XIEh3OZ3IlqhMTgrvtTlrqs/m:9R7WAhOVAgrvtJ2s
TLSH T148052358283CBBABE548C778D16150C893F3F2FF5251EB5B20B1349E92B2793DA069D1
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)
File icon (PE):PE icon
dhash icon 15cce4f4d0d8cc53 (12 x Formbook, 5 x AgentTesla, 3 x RemcosRAT)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
297
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
ORDER_RINNO ALUMINUM.exe
Verdict:
Malicious activity
Analysis date:
2023-11-26 17:00:57 UTC
Tags:
remcos
Link:
https://app.any.run/tasks/5e62cb48-2a93-4de1-9496-64a3c329003d

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/460354/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.4996.31480.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
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 file in the %temp% directory
Launching a process
Creating a file
DNS request
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/656377b52efa450749a6e2bc/reports/260987be-b66d-4d9d-8d9d-29e2e786a27e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a1f95947c7d421aef77f87b95744c6a93c149e203af906b32b3e6002f3331cf3
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/33d9c571-85fe-48d6-a4ca-7e20b5326822
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1348038
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to modify clipboard data
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 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
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1348038 Sample: ORDER_RINNO_ALUMINUM.exe Startdate: 26/11/2023 Architecture: WINDOWS Score: 100 40 grantadistciaret.com 2->40 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 12 other signatures 2->50 8 ORDER_RINNO_ALUMINUM.exe 7 2->8         started        12 EyxovGfVYnDD.exe 5 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\...yxovGfVYnDD.exe, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\tmp3BF3.tmp, XML 8->38 dropped 52 Uses schtasks.exe or at.exe to add and modify task schedules 8->52 54 Adds a directory exclusion to Windows Defender 8->54 14 vbc.exe 3 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        56 Multi AV Scanner detection for dropped file 12->56 58 Machine Learning detection for dropped file 12->58 60 Writes to foreign memory regions 12->60 62 2 other signatures 12->62 24 schtasks.exe 1 12->24         started        26 vbc.exe 12->26         started        signatures6 process7 dnsIp8 42 grantadistciaret.com 85.195.105.107, 3212 GODADDYDE Germany 14->42 64 Contains functionality to bypass UAC (CMSTPLUA) 14->64 66 Contains functionalty to change the wallpaper 14->66 68 Contains functionality to steal Chrome passwords or cookies 14->68 70 4 other signatures 14->70 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 24->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a1f95947c7d421aef77f87b95744c6a93c149e203af906b32b3e6002f3331cf3
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a1f95947c7d421aef77f87b95744c6a93c149e203af906b32b3e6002f3331cf3/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-22 02:49:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uh4vsr6h2qq25537q64vorggve6bjhrahl4qnmzlhzqaf4ztdtzq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:grace rat
Link:
https://tria.ge/reports/231126-vdd3vsae69/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Uses the VBS compiler for execution
Remcos
Malware Config
C2 Extraction:
grantadistciaret.com:3212
Unpacked files
SH256 hash:
3fc435481d7ef0079bdad4dd86185e61a5092a5df4a3e17a75266cf283effaa1
MD5 hash:
ead80ad88662af6f37f0c49fe6e3fb44
SHA1 hash:
dbeb4019c7337347d1c6d0913c9249021cafd849
Link:
https://www.unpac.me/results/795b5214-b8e6-42f1-9821-f76a60b34d8d/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/795b5214-b8e6-42f1-9821-f76a60b34d8d/
SH256 hash:
ec7e824804a2ba60b498e8a8da8633cd87bd697aae85d2b1b67a28116d801fd7
MD5 hash:
6b55b4fae35b57235edd773ab2a5460d
SHA1 hash:
7d3c5a879fff344453a89dd54acf5a0ecb0abc2b
Link:
https://www.unpac.me/results/795b5214-b8e6-42f1-9821-f76a60b34d8d/
SH256 hash:
cf0bc44ce17f3691873b5d4b1048d2ee37966fed0d6f9aefe82a63d5e3a44381
MD5 hash:
4c9dcdd5946caffba47fd4218404d384
SHA1 hash:
4f733af9d4a0eef8aa55968c2971f5d6ae1f0f57
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/795b5214-b8e6-42f1-9821-f76a60b34d8d/
Parent samples :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 hash:
a1f95947c7d421aef77f87b95744c6a93c149e203af906b32b3e6002f3331cf3
MD5 hash:
b65cc69f005ea9a571046be27b48edfb
SHA1 hash:
4b3d1ce39b0328a76d52dbada6b554b4adfcdc10
Link:
https://www.unpac.me/results/795b5214-b8e6-42f1-9821-f76a60b34d8d/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a1f95947c7d4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a1f95947c7d421aef77f87b95744c6a93c149e203af906b32b3e6002f3331cf3

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: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 a1f95947c7d421aef77f87b95744c6a93c149e203af906b32b3e6002f3331cf3

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/460354/

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