MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 483da9e4ba41764c76b866df9ded1a18ca671a589cd64ee0ad52c5f66da08587. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: 483da9e4ba41764c76b866df9ded1a18ca671a589cd64ee0ad52c5f66da08587
SHA3-384 hash: 7664b3dc30f4c6313cdfac5a30d06c278d0f01bb62b6b0fd58004ca153f2afabebcf204baf0761c391ee28815b76c5c1
SHA1 hash: 66804ca3acca658582d71e269d0f5a75556bbf67
MD5 hash: 2fc9552b8ba5dd08a67bfce7c35fbcc9
humanhash: wolfram-angel-asparagus-alaska
File name:2fc9552b8ba5dd08a67bfce7c35fbcc9.exe
Download: download sample
Signature Formbook
File size:854'016 bytes
First seen:2023-03-15 15:19:10 UTC
Last seen:2023-03-15 16:56:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:hiz2uaiJGRTwd1LfazM46NDil+DXiFYKxH/sIqVhbc0oP1iESOQpQxIwfpyv6t:1uHJTvTaY461DXBKxH0I46P1iofb8
Threatray 122 similar samples on MalwareBazaar
TLSH T1A805014C662A1B66CE6C33FB8462355493B1AA588301F37E5EC564E71FF2BE4D901C8B
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon f8ec96b2b296ccf0 (8 x AgentTesla, 4 x SnakeKeylogger, 3 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
210
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
avemaria
ID:
1
File name:
RUS3109Y51.exe
Verdict:
Malicious activity
Analysis date:
2023-03-15 09:27:16 UTC
Tags:
stealer rat avemaria loader warzone

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Creating a process from a recently created file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
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
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 827171 Sample: X6yu1q9YBY.exe Startdate: 15/03/2023 Architecture: WINDOWS Score: 100 62 Malicious sample detected (through community Yara rule) 2->62 64 Antivirus detection for URL or domain 2->64 66 Sigma detected: Scheduled temp file as task from temp location 2->66 68 3 other signatures 2->68 8 X6yu1q9YBY.exe 7 2->8         started        12 BftTlDYOR.exe 5 2->12         started        process3 file4 48 C:\Users\user\AppData\Roaming\BftTlDYOR.exe, PE32 8->48 dropped 50 C:\Users\...\BftTlDYOR.exe:Zone.Identifier, ASCII 8->50 dropped 52 C:\Users\user\AppData\Local\...\tmpF4C3.tmp, XML 8->52 dropped 54 C:\Users\user\AppData\...\X6yu1q9YBY.exe.log, ASCII 8->54 dropped 70 Uses schtasks.exe or at.exe to add and modify task schedules 8->70 72 Adds a directory exclusion to Windows Defender 8->72 74 Injects a PE file into a foreign processes 8->74 14 X6yu1q9YBY.exe 8->14         started        17 powershell.exe 21 8->17         started        19 powershell.exe 21 8->19         started        21 schtasks.exe 1 8->21         started        76 Multi AV Scanner detection for dropped file 12->76 78 Machine Learning detection for dropped file 12->78 23 BftTlDYOR.exe 12->23         started        25 schtasks.exe 12->25         started        27 BftTlDYOR.exe 12->27         started        signatures5 process6 signatures7 88 Modifies the context of a thread in another process (thread injection) 14->88 90 Maps a DLL or memory area into another process 14->90 92 Sample uses process hollowing technique 14->92 94 Queues an APC in another process (thread injection) 14->94 29 explorer.exe 1 1 14->29 injected 33 conhost.exe 17->33         started        35 conhost.exe 19->35         started        37 conhost.exe 21->37         started        39 conhost.exe 25->39         started        process8 dnsIp9 56 www.tiflovector.ru 195.24.68.5, 49700, 49701, 80 RU-CENTERRU Russian Federation 29->56 58 td-ccm-168-233.wixdns.net 34.117.168.233, 49695, 80 GOOGLE-AS-APGoogleAsiaPacificPteLtdSG United States 29->58 60 5 other IPs or domains 29->60 96 System process connects to network (likely due to code injection or exploit) 29->96 41 explorer.exe 29->41         started        44 autoconv.exe 29->44         started        46 wlanext.exe 29->46         started        signatures10 process11 signatures12 80 Tries to steal Mail credentials (via file / registry access) 41->80 82 Tries to harvest and steal browser information (history, passwords, etc) 41->82 84 Modifies the context of a thread in another process (thread injection) 41->84 86 Maps a DLL or memory area into another process 41->86
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-03-15 06:26:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
18 of 39 (46.15%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
8e43a1d677bc954f55f591fe65056e38f2dd689005d4bb429f8e071703b30db9
MD5 hash:
dfdef15d3b8edf6bc697bdb6ee4b094f
SHA1 hash:
bc9d48d43418f0ac5dd3656db5294bbb4852f6ec
Detections:
win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
69d8d8d9bcb48ca8155b9c2d281375c70eeea8c5dd78261b11fb01f85af2470d
MD5 hash:
47b7ee85ff27a8f754e67c1c8f5ec831
SHA1 hash:
f08ad6f876fc4e04ba4485745ccc314ab5d0299a
SH256 hash:
e571c95286577fb41932037483755b6e586405e4040140111668acdfb7ffe013
MD5 hash:
4e2373b55cf8ee0ed1bb9a51f5e32f5b
SHA1 hash:
df79d65c0ca6b5fd7e459e32639dcb3980e5c490
SH256 hash:
062f1fdcb49443e9cf75a8f056d4a8e70b2b61d4b111e66fa8117cb8e90e3b04
MD5 hash:
c66d068e7f5a3a68e122e7f88b782317
SHA1 hash:
c489486b0730a9923b77b2ca8e1eedba0214619d
SH256 hash:
d06df7395d561e198f9b7c5481567116ff2e4c2e84437c018d2a2c8ea6c4ca37
MD5 hash:
0fb6061f7d37424fb9e6d0e76b019c19
SHA1 hash:
98a64bf7b459f032d6ec5793003bf61b5ae1dd74
SH256 hash:
900604b97bcdc423a6fe8980412c5bf39b3ac913fb202c07a3f1ede1125b9669
MD5 hash:
773d5adce2fd0ea58436d150256d54f0
SHA1 hash:
1986e82ef0cd50febd6de65121132cac6d328844
SH256 hash:
483da9e4ba41764c76b866df9ded1a18ca671a589cd64ee0ad52c5f66da08587
MD5 hash:
2fc9552b8ba5dd08a67bfce7c35fbcc9
SHA1 hash:
66804ca3acca658582d71e269d0f5a75556bbf67
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
Rule name:Skystars_Malware_Imphash
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

Formbook

Executable exe 483da9e4ba41764c76b866df9ded1a18ca671a589cd64ee0ad52c5f66da08587

(this sample)

  
Delivery method
Distributed via web download

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