MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c336be13fd44a0e3d92a895016a109f386504bd40f5362613f6c2107958df5d. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c336be13fd44a0e3d92a895016a109f386504bd40f5362613f6c2107958df5d
SHA3-384 hash: 3848b92c0883b0d5e24850658cf603fec0418dc2a693aa7785a42a4cfb5a11c5b9f4ed3d051b6a08971c7cf29ec47b19
SHA1 hash: feacf3d22951dc226c7813b10ed5f842c0249ff8
MD5 hash: 8b343a81170ca4a0d3f7597ff9e5761f
humanhash: colorado-lamp-failed-mountain
File name:Purchase Inquiry 2022-09-22.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:11'264 bytes
First seen:2022-09-22 20:22:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 96:IoQsuXzYCOsyO/jaUF/oPQt4YqO2q5EwExoUH1YdaKNZ6NylSjFnU:IoxBCOFCjXaPYqz5DJU9
Threatray 2'179 similar samples on MalwareBazaar
TLSH T17A32744FD3CA1972D92A4A3EA54292F206787782DCFD4F6E2470B857B8333C50961D6B
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 9b1979616969612b (42 x RemcosRAT, 6 x AgentTesla, 5 x Formbook)
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
387
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Inquiry 2022-09-22.exe
Verdict:
Suspicious activity
Analysis date:
2022-09-22 20:23:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7998b569-3589-4d5b-8786-ca5bd382b426

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/312455/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.12129.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Creating a window
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/632cc47c12db32f02468b60c/reports/d66f9106-f0f2-4725-be86-6fef41dadda7/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/603f9ca0-7a36-4549-8279-492d6f40e601
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1075588
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 708130 Sample: Purchase Inquiry 2022-09-22.exe Startdate: 22/09/2022 Architecture: WINDOWS Score: 100 55 Multi AV Scanner detection for domain / URL 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for URL or domain 2->59 61 12 other signatures 2->61 7 Purchase Inquiry 2022-09-22.exe 16 7 2->7         started        12 Ugueiwalf.exe 14 2 2->12         started        14 Ugueiwalf.exe 2 2->14         started        process3 dnsIp4 51 transfer.sh 144.76.136.153, 443, 49705, 49710 HETZNER-ASDE Germany 7->51 39 C:\Users\user\AppData\...\Ugueiwalf.exe, PE32 7->39 dropped 41 C:\Users\...\Ugueiwalf.exe:Zone.Identifier, ASCII 7->41 dropped 43 C:\...\Purchase Inquiry 2022-09-22.exe.log, ASCII 7->43 dropped 73 Encrypted powershell cmdline option found 7->73 75 Writes to foreign memory regions 7->75 77 Injects a PE file into a foreign processes 7->77 16 aspnet_compiler.exe 2 18 7->16         started        21 powershell.exe 16 7->21         started        79 Multi AV Scanner detection for dropped file 12->79 81 Machine Learning detection for dropped file 12->81 file5 signatures6 process7 dnsIp8 45 obologs.work.gd 194.5.98.244, 4044, 49711, 49712 DANILENKODE Netherlands 16->45 47 geoplugin.net 178.237.33.50, 49714, 80 ATOM86-ASATOM86NL Netherlands 16->47 49 transfer.sh 16->49 35 C:\Users\user\AppData\Local\Temp\dwn.exe, PE32 16->35 dropped 37 C:\Users\user\AppData\Local\...\Xrwkyy[1].exe, PE32 16->37 dropped 63 Maps a DLL or memory area into another process 16->63 23 dwn.exe 16->23         started        27 aspnet_compiler.exe 16->27         started        29 aspnet_compiler.exe 16->29         started        33 8 other processes 16->33 31 conhost.exe 21->31         started        file9 signatures10 process11 dnsIp12 53 transfer.sh 23->53 65 Multi AV Scanner detection for dropped file 23->65 67 Machine Learning detection for dropped file 23->67 69 Tries to steal Instant Messenger accounts or passwords 27->69 71 Tries to steal Mail credentials (via file / registry access) 27->71 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3c336be13fd44a0e3d92a895016a109f386504bd40f5362613f6c2107958df5d/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2022-09-22 07:30:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
8 of 40 (20.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hqzwxyj72rfa4pmsvckqc2qqt44gkbf5id2tmjqt63bba6ky35oq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
2f53875cb56cc1a1f69655fcfca71ac0f952b8d582bda33e101d8b262e38d0f9
RemcosRAT
4bd1f385e71c2b0c8bb27ce271cfd26c696e3049e3e92cd150ba62666bc6221f
RemcosRAT
592f15fec50eda79baadcb6bc5c4cb79de60e5bb285f20fb8e8927477495f065
RemcosRAT
7544af0313e3be873eee7b54815dac5d0dece0bfd39b0c4e93bfe34516baa387
RemcosRAT
7f89f38c1c2a3e42e7fe2d1c286816361fe77aa49d1d474de200df6eb2dbda81
RemcosRAT
9d724226a2a3c8676d4a58b64b636d9dcc178c1d40fcf321309afa14505cf285
RemcosRAT
e1eb708f47303b831f6eb0ddc846e21782e8f727dcb0088fcb997c3bf0d4dbd3
RemcosRAT
+ 2'169 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:remcos botnet:remotehost campaign:hqbo collection persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/220922-y55axaccc8/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Downloads MZ/PE file
Executes dropped EXE
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Formbook
Remcos
Malware Config
C2 Extraction:
obologs.work.gd:4044
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c97f9e1b-9b08-4379-ab6a-01e1224a9018
Unpacked files
SH256 hash:
3c336be13fd44a0e3d92a895016a109f386504bd40f5362613f6c2107958df5d
MD5 hash:
8b343a81170ca4a0d3f7597ff9e5761f
SHA1 hash:
feacf3d22951dc226c7813b10ed5f842c0249ff8
Link:
https://www.unpac.me/results/64392349-3dbd-4439-a517-30621564d433/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3c336be13fd4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/3c336be13fd44a0e3d92a895016a109f386504bd40f5362613f6c2107958df5d

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 3c336be13fd44a0e3d92a895016a109f386504bd40f5362613f6c2107958df5d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/312455/

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