MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d9737abe95686b73b24bab3b431da3d9a774393f8a228265eb7d4bd6b0f992dd. 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: d9737abe95686b73b24bab3b431da3d9a774393f8a228265eb7d4bd6b0f992dd
SHA3-384 hash: ebd25366a759e923cf78bd739e55192b4cfcbcb9753fa7e4c0f0e3f6574934ade2b65c64c8a4c4163d9f2324482af7d2
SHA1 hash: 366cedfe4e9280a0b699d13c87df5c70eec4773e
MD5 hash: adb940fdb9891fd32699e4d8cdad2725
humanhash: minnesota-fourteen-nevada-august
File name:file
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'153'536 bytes
First seen:2022-11-19 18:24:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:8vNsqXeEHsOzj4j85M1hUQDAxzJX4vz5:OBXtsOzj4jGM1aK4FX
TLSH T1D135DF2B7AEE0BD2C19D09309E65F79C17F08E1A6014EF912CD5E2E186B5A451BF307E
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e4ccccccd4c4cccc (10 x Formbook, 10 x AgentTesla, 5 x Loki)
Reporter jstrosch
Tags:.NET exe MSIL RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
260
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-11-19 18:27:40 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ea0e1e90-b08b-404d-92bc-0677ba3286d6

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/336181/
Detection(s):
Win.Dropper.Formbook-9945586-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a window
Running batch commands
Launching a process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/63791f7fa0efd596b82ee78c/reports/47c7bfe3-1e92-40cc-a610-ad6ad51c2c73/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/58e0af4b-2baa-4505-ae7b-559a871faaca
Result
Threat name:
DarkTortilla, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1117295
Signature
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected DarkTortilla Crypter
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 750007 Sample: file.exe Startdate: 19/11/2022 Architecture: WINDOWS Score: 100 42 Multi AV Scanner detection for domain / URL 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for dropped file 2->46 48 8 other signatures 2->48 7 file.exe 15 4 2->7         started        process3 dnsIp4 40 www.google.com 172.217.168.68, 443, 49696 GOOGLEUS United States 7->40 32 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 7->32 dropped 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->52 12 cmd.exe 1 7->12         started        15 cmd.exe 3 7->15         started        file5 signatures6 process7 file8 54 Uses ping.exe to sleep 12->54 56 Uses ping.exe to check the status of other devices and networks 12->56 18 reg.exe 1 1 12->18         started        21 PING.EXE 1 12->21         started        24 conhost.exe 12->24         started        34 C:\Users\user\AppData\Roaming\...\Micar.exe, PE32 15->34 dropped 36 C:\Users\user\...\Micar.exe:Zone.Identifier, ASCII 15->36 dropped 26 conhost.exe 15->26         started        28 PING.EXE 1 15->28         started        30 PING.EXE 1 15->30         started        signatures9 process10 dnsIp11 50 Creates an undocumented autostart registry key 18->50 38 127.0.0.1 unknown unknown 21->38 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d9737abe95686b73b24bab3b431da3d9a774393f8a228265eb7d4bd6b0f992dd/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-11-19 17:10:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
49
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3fzxvpuvnbvxhmslvm5ughnd3gtxioj7ririezplpvf5nmhzsloq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence
Link:
https://tria.ge/reports/221119-w2lchshg2x/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Executes dropped EXE
Modifies WinLogon for persistence
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e51d7b81-bfec-4ec4-a20d-77e7c3eca6a2
Unpacked files
SH256 hash:
d9737abe95686b73b24bab3b431da3d9a774393f8a228265eb7d4bd6b0f992dd
MD5 hash:
adb940fdb9891fd32699e4d8cdad2725
SHA1 hash:
366cedfe4e9280a0b699d13c87df5c70eec4773e
Link:
https://www.unpac.me/results/b2e21a49-b47f-4cac-9c48-d62b91445e17/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d9737abe9568/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

Web download

RemcosRAT

Executable exe d9737abe95686b73b24bab3b431da3d9a774393f8a228265eb7d4bd6b0f992dd

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/336181/
  
URLhaus
https://urlhaus.abuse.ch/url/2422388/
  
URLhaus
https://urlhaus.abuse.ch/url/2426203/

Comments