MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa09d38ea66f08ab6306c26b2c3f736450be10e997d0ce8c9c51da056949e6bc. 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: 14


Intelligence 14 IOCs YARA 9 File information Comments
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SHA256 hash: aa09d38ea66f08ab6306c26b2c3f736450be10e997d0ce8c9c51da056949e6bc
SHA3-384 hash: 7b7695e9998a95a94d26f1fa5d8ae675f890fd17e8db19241d157472efdc574354c671b14870c5100eff1252571f2fd0
SHA1 hash: 2e1b5094c3618f403b3d5f177057c886f1665ac1
MD5 hash: 6dc0eb3d9faf66a41b1bf36886c81278
humanhash: mountain-six-batman-item
File name:TiWorker.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:3'024'384 bytes
First seen:2025-06-01 11:26:34 UTC
Last seen:2025-06-10 11:01:36 UTC
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:Y+3JJmqlMky1OVC64CZfftlMDXXZ4bwgEaJiY93bVfZo0VxHccM81rNq0Rxg/pOP:YI1C6htl8X1gnJHRfL5q0Rxg/pO
Threatray 133 similar samples on MalwareBazaar
TLSH T182E5F605B3EE0E5AE4BB4779A479101446F7FC166B33D74F2548A1AA1EB3B80CD523A3
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 skocherhan
Tags:208-89-63-13 exe FormBook opendir


Avatar
skocherhan
http://208.89.63.13/700/TiWorker.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
499
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
http://seethemagicaldevilthingsformebetterunderstandingsituationsformetoget.business@short.udon-morishige.com/yph9Ei
Verdict:
Malicious activity
Analysis date:
2025-05-28 07:53:57 UTC
Tags:
loader stealer api-base64 formbook xloader
Link:
https://app.any.run/tasks/4ae2b4e7-f336-48a5-9d87-170d891bdd0f

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/6681/
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.AWF.gen.Eldorado.24271.3087.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=683c3ce3acf88f5815ea8ed3
Tags:
micro shell sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Sending an HTTP GET request
Launching cmd.exe command interpreter
Creating a file
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/aa09d38ea66f08ab6306c26b2c3f736450be10e997d0ce8c9c51da056949e6bc
Malware family:
Microsoft Corporation
Create hunting rule
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/f82f4cdb-ceba-4195-8480-d843e20f47fc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1703311
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Connects to a pastebin service (likely for C&C)
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queries Google from non browser process on port 80
Queues an APC in another process (thread injection)
Reads the Security eventlog
Reads the System eventlog
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses threadpools to delay analysis
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected Powershell download and execute
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1703311 Sample: TiWorker.exe Startdate: 01/06/2025 Architecture: WINDOWS Score: 100 36 www.031235218.xyz 2->36 38 www.whalenavi.xyz 2->38 40 20 other IPs or domains 2->40 56 Suricata IDS alerts for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Multi AV Scanner detection for submitted file 2->60 64 9 other signatures 2->64 10 TiWorker.exe 15 6 2->10         started        15 wscript.exe 2->15         started        signatures3 62 Performs DNS queries to domains with low reputation 38->62 process4 dnsIp5 42 paste.ee 23.186.113.60, 443, 49682, 49683 KLAYER-GLOBALNL Reserved 10->42 44 ia800101.us.archive.org 207.241.232.11, 443, 49681 INTERNET-ARCHIVEUS United States 10->44 34 C:\Users\user\AppData\...\TiWorker.exe.log, ASCII 10->34 dropped 74 Writes to foreign memory regions 10->74 76 Allocates memory in foreign processes 10->76 78 Found suspicious powershell code related to unpacking or dynamic code loading 10->78 80 4 other signatures 10->80 17 cmd.exe 10->17         started        20 cmd.exe 1 10->20         started        file6 signatures7 process8 signatures9 52 Maps a DLL or memory area into another process 17->52 22 sVv0xezww6.exe 17->22 injected 54 Switches to a custom stack to bypass stack traces 20->54 24 conhost.exe 20->24         started        process10 process11 26 cmd.exe 22->26         started        signatures12 66 Tries to steal Mail credentials (via file / registry access) 26->66 68 Tries to harvest and steal browser information (history, passwords, etc) 26->68 70 Modifies the context of a thread in another process (thread injection) 26->70 72 2 other signatures 26->72 29 Q4RW0lmLT2Z.exe 26->29 injected 32 firefox.exe 26->32         started        process13 dnsIp14 46 fourexclothing.shop 84.32.84.32, 49700, 49701, 49702 NTT-LT-ASLT Lithuania 29->46 48 031235218.xyz 144.76.229.203, 49732, 49733, 49734 HETZNER-ASDE Germany 29->48 50 12 other IPs or domains 29->50
Score:
90%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/aa09d38ea66f08ab6306c26b2c3f736450be10e997d0ce8c9c51da056949e6bc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa09d38ea66f08ab6306c26b2c3f736450be10e997d0ce8c9c51da056949e6bc/
Threat name:
Win32.Trojan.Leonem
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Status:
Malicious
First seen:
2025-05-28 08:43:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
61
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vie5hdvgn4ekwyygyjvsyp3tmril4ehjs7im5de4khnak2kj426a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
123ef9f91735fa6c4b35a8c68175db0c9be5a84d2ce21e9cd5c4aceec8b25f23
Formbook
1647ef778a94d0cd84ea714757b85c6f62ba9881a0403af8173227808d4a9aa3
Formbook
5331d1eadb8b8727b21f368f5c8edb92b368d88e70c4d76e33f46fe6b55ee0d7
Formbook
769789472da19bb0fe6b884c61e13d04909d5629491662ae1da6a34068ed5e86
Formbook
96bcd835d13f775f2e1157ba7f4030fabf7e60196b2f511bc67e80ee0e1b6cc0
Formbook
96c21f37b09bea691324579696c175d6a69b960e4010697c7ca1e012eb1300c4
Formbook
a432bcc6e9b898d5bd0d40f24e9c4cbf1b19c2d9de3b1179e5a86216132258d6
Formbook
b285dad42226c71af623cca37ee52675f265c227f5761033634e72186afc6c61
Formbook
ec35d1cc7941458cc79762055979eff1d904d3d420d8c63b2f7b660657723930
Formbook
error
Formbook
+ 123 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/250601-nkeveagk8z/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/bcb5c70e-b8e0-43dc-abf2-1f1d5f508f3a
Unpacked files
SH256 hash:
aa09d38ea66f08ab6306c26b2c3f736450be10e997d0ce8c9c51da056949e6bc
MD5 hash:
6dc0eb3d9faf66a41b1bf36886c81278
SHA1 hash:
2e1b5094c3618f403b3d5f177057c886f1665ac1
Link:
https://www.unpac.me/results/b7d18bd2-e0a2-4313-9329-0ccc6fc199e6/
SH256 hash:
1c6dd7935a15c026f69c6f687f21b83d06c69fa089ed26b10fe2a08e68fe1acb
MD5 hash:
6ca7d39d5e569cc91538dd29b88fdaea
SHA1 hash:
c669667bb4d7870bc8bb65365d30071eb7fb86fe
Link:
https://www.unpac.me/results/b7d18bd2-e0a2-4313-9329-0ccc6fc199e6/
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/aa09d38ea66f08ab6306c26b2c3f736450be10e997d0ce8c9c51da056949e6bc

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:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETDLLMicrosoft
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

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/6681/

Comments