MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 72140c5148b70c098ce65045d1c2365ee9e85d904426ea8cd3f8f280c0d99ceb. 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


Formbook


Vendor detections: 18


Intelligence 18 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 72140c5148b70c098ce65045d1c2365ee9e85d904426ea8cd3f8f280c0d99ceb
SHA3-384 hash: 8332cec9fd3cf8cba4e952772df8ddd6205f318d7240a0b34107f1ac95662913a7b39dd1c0cf8ab08b015e192671e29b
SHA1 hash: 0c1a03d2bddf08e513ff543e789d21dc46660058
MD5 hash: 1fad00560537343494a003e36fe0e2c8
humanhash: september-alpha-six-earth
File name:COMSurrogate.exe.bin
Download: download sample
Signature Formbook
Create hunting rule
File size:57'344 bytes
First seen:2025-03-14 17:27:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'656 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 768:HXlCFd0xza30bfdB5Y2O8AJSRZDU1bdgH0fwyjPKhJOkbsfHte6h:HVCFdkRxUcZYbdgHwwyebOcdc
TLSH T17443E749E7E95630D4BF5BB019B3530DC2B1B9936843CA1E7CD916CA2B67BC48640EE3
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter KatzenTech
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
457
Origin country :
RU RU
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d4746308116ce4257130ea
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% directory
Launching a process
Creating a process with a hidden window
Enabling the 'hidden' option for recently created files
Connection attempt to an infection source
Sending a custom TCP request
Creating a window
Creating a process from a recently created file
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd explorer fingerprint lolbin masquerade obfuscated reconnaissance schtasks vbnet
Link:
https://www.filescan.io/uploads/67d4672fd2c4beeae9257828/reports/edd899ee-21b2-492e-9d37-f83e3a335e0d/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/72140c5148b70c098ce65045d1c2365ee9e85d904426ea8cd3f8f280c0d99ceb
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:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ea071a4e-83c6-4ab1-ae0e-0b6caf9e43cf
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1638769
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
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
Uses shutdown.exe to shutdown or reboot the system
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1638769 Sample: COMSurrogate.exe.bin.exe Startdate: 14/03/2025 Architecture: WINDOWS Score: 100 33 version-coffee.gl.at.ply.gg 2->33 35 raw.githubusercontent.com 2->35 37 2 other IPs or domains 2->37 45 Suricata IDS alerts for network traffic 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 6 other signatures 2->51 8 COMSurrogate.exe.bin.exe 15 7 2->8         started        13 COMSurrogate.exe.bin.exe 1 2->13         started        15 COMSurrogate.exe.bin.exe 2->15         started        17 3 other processes 2->17 signatures3 process4 dnsIp5 39 version-coffee.gl.at.ply.gg 147.185.221.26, 49683, 52392 SALSGIVERUS United States 8->39 41 ip-api.com 208.95.112.1, 49682, 80 TUT-ASUS United States 8->41 43 2 other IPs or domains 8->43 27 C:\Users\user\...\COMSurrogate.exe.bin.exe, PE32 8->27 dropped 29 COMSurrogate.exe.bin.exe:Zone.Identifier, ASCII 8->29 dropped 53 Uses shutdown.exe to shutdown or reboot the system 8->53 55 Uses schtasks.exe or at.exe to add and modify task schedules 8->55 57 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->57 19 schtasks.exe 1 8->19         started        21 shutdown.exe 1 8->21         started        31 C:\Users\...\COMSurrogate.exe.bin.exe.log, CSV 13->31 dropped 59 Antivirus detection for dropped file 13->59 61 Multi AV Scanner detection for dropped file 13->61 file6 signatures7 process8 process9 23 conhost.exe 19->23         started        25 conhost.exe 21->25         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/72140c5148b70c098ce65045d1c2365ee9e85d904426ea8cd3f8f280c0d99ceb
Detection:
shortloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/72140c5148b70c098ce65045d1c2365ee9e85d904426ea8cd3f8f280c0d99ceb/
Threat name:
Win32.Exploit.XWorm
Create hunting rule
Status:
Malicious
First seen:
2025-03-13 20:34:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oikayukiw4gatdhgkbc5dqrwl3u6qxmqiqtovdgt7dzibqgzttvq._file
Verdict:
malicious
Label(s):
cashrat
Create hunting rule
xworm
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm rat trojan
Link:
https://tria.ge/reports/250314-v1237svzaz/
Behaviour
Suspicious use of AdjustPrivilegeToken
Looks up external IP address via web service
Detect Xworm Payload
Xworm
Xworm family
Verdict:
Malicious
Tags:
Win.Packed.Msilzilla-10026194-0 external_ip_lookup
YARA:
n/a
Link:
https://app.threat.zone/submission/2bf788b6-7862-4ab7-ab5b-b5b8bcaff66f
Unpacked files
SH256 hash:
72140c5148b70c098ce65045d1c2365ee9e85d904426ea8cd3f8f280c0d99ceb
MD5 hash:
1fad00560537343494a003e36fe0e2c8
SHA1 hash:
0c1a03d2bddf08e513ff543e789d21dc46660058
Detections:
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/7a7c119f-b530-4749-b01b-7a326011c132/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/72140c5148b7/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/72140c5148b70c098ce65045d1c2365ee9e85d904426ea8cd3f8f280c0d99ceb

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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:MALWARE_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NETexecutableMicrosoft
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
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs

File information

The table below shows additional information about this malware sample such as delivery method and external references.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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