MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 33d4fd69c03968b472e3b5ec2fdf43db754aeed4366ae0111ac97fd394ef1e45. 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: 16


Intelligence 16 IOCs YARA 16 File information Comments
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SHA256 hash: 33d4fd69c03968b472e3b5ec2fdf43db754aeed4366ae0111ac97fd394ef1e45
SHA3-384 hash: 70cf4ed2b2c1e2f201bd4c4b74834457f9ba8fb83fdffcf8310d119a88d14aeedb08395b28c7324d803b6654c6a36d43
SHA1 hash: 2b4ec9a97aa03de5c00616b3d4f695377791155f
MD5 hash: d3689c6f5e4336f5c79d3b5ef5588950
humanhash: green-nuts-oscar-hotel
File name:33d4fd69c03968b472e3b5ec2fdf43db754aeed4366ae0111ac97fd394ef1e45
Download: download sample
Signature Formbook
Create hunting rule
File size:530'432 bytes
First seen:2024-01-10 14:58:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:N+2iN/qHSkTkOMBKZ92HV1y4jiXLhT5vW:N+19qHSiZEKX
TLSH T1C5B4F1157DFD8A86E5AB07F63D8D82A003346D8A3723D30E9A91359FC9B9F80C60557B
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
dhash icon f08f898c8e8a8fb0 (37 x SnakeKeylogger, 19 x AgentTesla, 17 x AveMariaRAT)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
322
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
33d4fd69c03968b472e3b5ec2fdf43db754aeed4366ae0111ac97fd394ef1e45
Verdict:
Malicious activity
Analysis date:
2024-01-10 14:58:08 UTC
Tags:
evasion xworm remote
Link:
https://app.any.run/tasks/fd68c04a-9c8f-4f00-b85b-804e740a833f

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/470217/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Win.Dropper.Formbook-9994358-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Sending an HTTP GET request
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
lolbin packed replace
Link:
https://www.filescan.io/uploads/659eb0bd8369fab94de9db06/reports/afd539f8-4ca2-4107-91f8-3186671e3bd1/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/33d4fd69c03968b472e3b5ec2fdf43db754aeed4366ae0111ac97fd394ef1e45
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f18b5912-9cdc-4df7-8dd7-b2c060b46849
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1372467
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert 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 the Telegram API (likely for C&C communication)
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1372467 Sample: zWXamPurlu.exe Startdate: 10/01/2024 Architecture: WINDOWS Score: 100 68 api.telegram.org 2->68 70 ip-api.com 2->70 78 Snort IDS alert for network traffic 2->78 80 Found malware configuration 2->80 82 Malicious sample detected (through community Yara rule) 2->82 86 14 other signatures 2->86 9 zWXamPurlu.exe 7 2->9         started        13 GelQiolecD.exe 5 2->13         started        15 zWXamPurlu.exe 2->15         started        17 zWXamPurlu.exe 2->17         started        signatures3 84 Uses the Telegram API (likely for C&C communication) 68->84 process4 file5 64 C:\Users\user\AppData\...behaviorgraphelQiolecD.exe, PE32 9->64 dropped 66 C:\Users\user\AppData\Local\...\tmp9CD4.tmp, XML 9->66 dropped 94 Bypasses PowerShell execution policy 9->94 96 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->96 98 Uses schtasks.exe or at.exe to add and modify task schedules 9->98 108 2 other signatures 9->108 19 zWXamPurlu.exe 16 7 9->19         started        24 powershell.exe 22 9->24         started        26 schtasks.exe 1 9->26         started        100 Antivirus detection for dropped file 13->100 102 Multi AV Scanner detection for dropped file 13->102 104 Machine Learning detection for dropped file 13->104 28 schtasks.exe 13->28         started        30 GelQiolecD.exe 13->30         started        106 Injects a PE file into a foreign processes 15->106 32 schtasks.exe 15->32         started        34 zWXamPurlu.exe 15->34         started        36 schtasks.exe 17->36         started        38 zWXamPurlu.exe 17->38         started        signatures6 process7 dnsIp8 72 103.67.163.156, 49741, 80 AARNET-AS-APAustralianAcademicandResearchNetworkAARNe unknown 19->72 74 ip-api.com 208.95.112.1, 49734, 80 TUT-ASUS United States 19->74 76 api.telegram.org 149.154.167.220, 443, 49740 TELEGRAMRU United Kingdom 19->76 62 C:\Users\user\AppData\...\zWXamPurlu.exe, PE32 19->62 dropped 88 Protects its processes via BreakOnTermination flag 19->88 90 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 19->90 92 Adds a directory exclusion to Windows Defender 19->92 40 powershell.exe 19->40         started        42 powershell.exe 19->42         started        44 powershell.exe 19->44         started        46 conhost.exe 24->46         started        48 conhost.exe 26->48         started        50 conhost.exe 28->50         started        52 conhost.exe 32->52         started        54 conhost.exe 36->54         started        file9 signatures10 process11 process12 56 conhost.exe 40->56         started        58 conhost.exe 42->58         started        60 conhost.exe 44->60         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/33d4fd69c03968b472e3b5ec2fdf43db754aeed4366ae0111ac97fd394ef1e45
Detection:
shortloader
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Link:
https://mwdb.cert.pl/sample/33d4fd69c03968b472e3b5ec2fdf43db754aeed4366ae0111ac97fd394ef1e45/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2023-12-30 11:07:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
32
AV detection:
18 of 37 (48.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gpkp22oahfuli4xdwxwc7x2d3n2uv3wugzvoaei2zf75hfhpdzcq._file
Verdict:
malicious
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm rat trojan
Link:
https://tria.ge/reports/240110-scqn6ahefm/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Looks up external IP address via web service
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
103.67.163.156:80
Unpacked files
SH256 hash:
e5c7adb6f34641712e29a8dbcd807ce182c10ddd37e60f5e0c323f44f457f5c0
MD5 hash:
d6feb00f8d246402bec034d46de3a31b
SHA1 hash:
7d61fda71d81443ee089412b28c854d5a25c0b1c
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/8dc9dba6-8e7c-4e80-9866-85983a820381/
Parent samples :
f7e5bc980e9a7659ba8aedcb0e5ec208b13d807657ceaeb276db2f5ddeb0b2cf
36e763233ca3ff441f5ce71a59ec7b108f6329d27406b378758f6437a0f049c8
2139944dcc75ffd2ae23cf50fb751ebec4dffb7774764e8b4d48808f0925aedd
7b9502c277114c4c5cde1d0ce893041f2a880ce2808855ec74faf47485660d51
f554eee597d0262cd192e15ecfb61c71746ca2c0bc9948dc7703440e797f802e
e72ab72a888f6ef0627bb1ea5452a168792d1dc4037b74c34cc557eb5d2fe000
63fecafde6aed53ac007e7a69372eda93dfa06143552644ceee7f032886c1c58
c3509aae7603690ed7a902f1d9b12ef6c2a9ba1909dbefc61d74372041be75c6
33d4fd69c03968b472e3b5ec2fdf43db754aeed4366ae0111ac97fd394ef1e45
504e1940bd93e130262a7bd2b15fb622f178e2b533bfb5514ddc860ea164266d
SH256 hash:
21afe82a0b71ee589c26f32dc88e0a6e22817f21194b2a83f1807c6cecc8c818
MD5 hash:
440bb4db146ccb1161ac2bcf365d7676
SHA1 hash:
506eda511b46df6e95d86861e70fda81307f8623
Link:
https://www.unpac.me/results/8dc9dba6-8e7c-4e80-9866-85983a820381/
SH256 hash:
068386ce8ac53e6cfa0b51770f0163a23c9718755187ea001f6e6732c8c40c20
MD5 hash:
4141630169cb3f1aba923825fbc8c44f
SHA1 hash:
3b6254a104c10ab47923b0035fd3339ecb48669b
Detections:
XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/8dc9dba6-8e7c-4e80-9866-85983a820381/
SH256 hash:
8417efeffd8d9685f0523ce1766ef4d9f38d430e6d03c4f6df8ecc3f5948fac8
MD5 hash:
c1f75541d3719262ae66ba26bfc9219f
SHA1 hash:
33c2d4756f6624d59d583d38b9fa9a1dc987a83a
Link:
https://www.unpac.me/results/8dc9dba6-8e7c-4e80-9866-85983a820381/
SH256 hash:
33d4fd69c03968b472e3b5ec2fdf43db754aeed4366ae0111ac97fd394ef1e45
MD5 hash:
d3689c6f5e4336f5c79d3b5ef5588950
SHA1 hash:
2b4ec9a97aa03de5c00616b3d4f695377791155f
Link:
https://www.unpac.me/results/8dc9dba6-8e7c-4e80-9866-85983a820381/
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/33d4fd69c03968b472e3b5ec2fdf43db754aeed4366ae0111ac97fd394ef1e45

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MALWARE_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
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:NET
Create hunting rule
Author:malware-lu
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
Rule name:win_delivery_check_g0
Create hunting rule

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/470217/

Comments