MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 80a92f2ceb76a9e3f2a5405c1d2d26f838d54b5129d1ce97d60c4af88c07dc61. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments

SHA256 hash: 80a92f2ceb76a9e3f2a5405c1d2d26f838d54b5129d1ce97d60c4af88c07dc61
SHA3-384 hash: 152a6b044c9bc026378f12c35dee0c107a34de57df655625e5988853acb3d10c32bfac08d737a4f07ceba7d1475091ad
SHA1 hash: c2911934ece108745f314ca7f9e763b7986001a2
MD5 hash: 0597c2f492733078cc3231b33dfc284c
humanhash: yellow-orange-green-hot
File name:87901426.exe
Download: download sample
Signature Formbook
File size:616'455 bytes
First seen:2022-12-09 14:22:53 UTC
Last seen:2022-12-16 14:42:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 97318da386948415d08cef4a9006d669 (71 x Formbook, 35 x SnakeKeylogger, 26 x AgentTesla)
ssdeep 12288:aLsIqZDM2wnBZ9FxvMMwEYwc4K00PGgmFfdTM2CqvxWm+XZO:agIwY2mZBvT1K0ZgydTlxWm+XA
TLSH T17FD42396BEF4CCA3D72C6235E7EF2308E67309090521058F3729AB789A976DA45871F4
TrID 92.7% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10523/12/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
174
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a window
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Launching a process
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Searching for synchronization primitives
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Result
Verdict:
UNKNOWN
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:
LockBit Ransomware
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Machine Learning detection for dropped file
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
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)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 764193 Sample: 87901426.exe Startdate: 09/12/2022 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 3 other signatures 2->52 9 87901426.exe 20 2->9         started        process3 file4 28 C:\Users\user\AppData\Local\...\xoarypnkl.exe, PE32 9->28 dropped 12 xoarypnkl.exe 1 2 9->12         started        process5 file6 30 C:\Users\user\AppData\Roaming\...\fgfoi.exe, PE32 12->30 dropped 66 Machine Learning detection for dropped file 12->66 68 Maps a DLL or memory area into another process 12->68 16 xoarypnkl.exe 12->16         started        signatures7 process8 signatures9 38 Modifies the context of a thread in another process (thread injection) 16->38 40 Maps a DLL or memory area into another process 16->40 42 Sample uses process hollowing technique 16->42 44 Queues an APC in another process (thread injection) 16->44 19 msiexec.exe 13 16->19         started        22 explorer.exe 16->22 injected process10 dnsIp11 54 Tries to steal Mail credentials (via file / registry access) 19->54 56 Tries to harvest and steal browser information (history, passwords, etc) 19->56 58 Modifies the context of a thread in another process (thread injection) 19->58 60 Maps a DLL or memory area into another process 19->60 32 www.127368.buzz 154.213.26.233, 49700, 49701, 80 YISUCLOUDLTD-AS-APYISUCLOUDLTDHK Seychelles 22->32 34 www.estacatemucocautin.com 154.210.53.58, 49695, 80 ITACE-AS-APItaceInternationalLimitedHK Seychelles 22->34 36 3 other IPs or domains 22->36 62 System process connects to network (likely due to code injection or exploit) 22->62 25 fgfoi.exe 22->25         started        signatures12 process13 signatures14 64 Machine Learning detection for dropped file 25->64
Threat name:
Win32.Trojan.Auzenpak
Status:
Malicious
First seen:
2022-12-09 14:22:01 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:yurm persistence rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
d72636b688f1516d95c5f4284e7bb48b4cdbb84be29602256352eb9bcd201b16
MD5 hash:
67ab1a1d4928f5ad3fa5da8d62da9526
SHA1 hash:
5065f154f716e6938d9364437f91ca8190d74571
SH256 hash:
e439f02b72a882498d512689f380e1323c4d8342578fe8608e81061cf4a8aee1
MD5 hash:
3d90ab79b9719aded136b7cd437ebb21
SHA1 hash:
dbec6e868a293cb0bd58d35191b1423ab8942384
SH256 hash:
80a92f2ceb76a9e3f2a5405c1d2d26f838d54b5129d1ce97d60c4af88c07dc61
MD5 hash:
0597c2f492733078cc3231b33dfc284c
SHA1 hash:
c2911934ece108745f314ca7f9e763b7986001a2
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:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

Malspam

Formbook

Executable exe 80a92f2ceb76a9e3f2a5405c1d2d26f838d54b5129d1ce97d60c4af88c07dc61

(this sample)

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