MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20127add0e752f2611eb3c21047f0c14a38d23738bcdc2e15794b5e8bdbd5f65. 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 2 File information Comments

SHA256 hash: 20127add0e752f2611eb3c21047f0c14a38d23738bcdc2e15794b5e8bdbd5f65
SHA3-384 hash: 560d3f22d3a537063d5cba020bd0afeeab49bd41c45de2623de735aa23319436fd831f2893c2f493990e889674248eaf
SHA1 hash: 1d1434f551688d46aea132924cba6d3cea56e1b0
MD5 hash: 75f27ac5b517a6434545efd24c589cd5
humanhash: uniform-mars-bulldog-one
File name:ecjgn8wlzHMefue.exe
Download: download sample
Signature Formbook
File size:726'016 bytes
First seen:2022-07-19 11:28:03 UTC
Last seen:2022-07-19 12:50:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:RCNjPOcQOvL5VUA3g4vROMoJ+onFJl7BzJCWb2gb3IU3ScaFlSNS:89OA24vRdsT1/CO9VaQS
TLSH T10DF4232377B4AB1CC07D0BF76421984157B26B563061EBAD9D82D1CF2873B468B65F23
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter pr0xylife
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
326
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
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.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 668955 Sample: ecjgn8wlzHMefue.exe Startdate: 19/07/2022 Architecture: WINDOWS Score: 100 32 Multi AV Scanner detection for domain / URL 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for URL or domain 2->36 38 8 other signatures 2->38 10 ecjgn8wlzHMefue.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\ecjgn8wlzHMefue.exe.log, ASCII 10->28 dropped 48 Tries to detect virtualization through RDTSC time measurements 10->48 50 Injects a PE file into a foreign processes 10->50 14 ecjgn8wlzHMefue.exe 10->14         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 14->52 54 Maps a DLL or memory area into another process 14->54 56 Sample uses process hollowing technique 14->56 58 Queues an APC in another process (thread injection) 14->58 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.office-cooperates.com 17->30 40 System process connects to network (likely due to code injection or exploit) 17->40 21 cmmon32.exe 17->21         started        signatures10 process11 signatures12 42 Modifies the context of a thread in another process (thread injection) 21->42 44 Maps a DLL or memory area into another process 21->44 46 Tries to detect virtualization through RDTSC time measurements 21->46 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-07-19 08:53:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
56
AV detection:
23 of 40 (57.50%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:a62i rat spyware stealer suricata trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
2c0220f0592b109778c39d45acb2213d68eceb634f5bef4d71e2d3fb81f42044
MD5 hash:
60277db7ce97c7e1f8f34387f0a2b834
SHA1 hash:
281d52b525165da6e56882565f38af3e8cb40305
Detections:
FormBook win_formbook_g0 win_formbook_auto
SH256 hash:
15b58274a26af8c535f713e4bfe2e8d30187f4a82af2c73e92d0a3f3bc46bdfd
MD5 hash:
55783824e29defa147a82e7bb85bbb33
SHA1 hash:
e3507f5f04e29c823c2b77d8c70ab7c466d99fe7
SH256 hash:
39c2d879c57f07305ce60412dc8a88f02e51f1a14a06cc605768d1d7f5313807
MD5 hash:
db51fe170a9e5d6ec5429a2fbd9d0353
SHA1 hash:
e30a58125fc41322db6cf2ccb6a6d414ed379016
SH256 hash:
f6d1cda2efe2622064025631b2a1ee8e5bdc057798de203ed5841916e662b4a1
MD5 hash:
fb7cc194309b03e66b160fe20f371762
SHA1 hash:
7b6fe95b9b6af1328d43ef9fff27919d807b9c47
SH256 hash:
b5de907a8ee394ec078458c48fbc7bffc87491ddca382273293af2e9fb0a4a0e
MD5 hash:
b381f003fe1b8d2659d29b2a3af1be6e
SHA1 hash:
7b653663ea1eb4f110f4891f5b5dd88ff06fef08
SH256 hash:
20127add0e752f2611eb3c21047f0c14a38d23738bcdc2e15794b5e8bdbd5f65
MD5 hash:
75f27ac5b517a6434545efd24c589cd5
SHA1 hash:
1d1434f551688d46aea132924cba6d3cea56e1b0
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.

Comments