MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 78fa533a638b518f838be240f431580d19df296894c35a0cfb3f652312d7d2aa. 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 4 File information Comments

SHA256 hash: 78fa533a638b518f838be240f431580d19df296894c35a0cfb3f652312d7d2aa
SHA3-384 hash: 6f84a0003177d3203242136578eb8122625a8fd956b4a0a87c289d01eac40c13287b223d2512a1257b409212157c4b47
SHA1 hash: 9feedc9ef4a646ef3a76a6b9b89ee41d2c6176a5
MD5 hash: 3ecef5ac7ba1208f98d5fa5f83b71507
humanhash: texas-edward-massachusetts-enemy
File name:gG5dwIYGbEQZBt7.exe
Download: download sample
Signature Formbook
File size:685'056 bytes
First seen:2024-02-07 08:28:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:ySkiLdrkixgxLvnA781059LjNwifyXhVWtphO+YtS97dIysn0RMD/g/JAEM2s:ySkiLdrkixgx7nA7J599wXmcS97dIymL
TLSH T145E4F104B59AAF63D23FA7F60B51A58403F6645AB132DB09EDD3A0E70AA1F050F51F27
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter cocaman
Tags:exe FormBook Shipping

Intelligence


File Origin
# of uploads :
1
# of downloads :
279
Origin country :
CH CH
Vendor Threat Intelligence
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
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected FormBook malware
Found 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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Steal Google chrome login data
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1388127 Sample: gG5dwIYGbEQZBt7.exe Startdate: 07/02/2024 Architecture: WINDOWS Score: 100 45 www.valeriepuma.com 2->45 47 www.uae535.com 2->47 49 6 other IPs or domains 2->49 53 Snort IDS alert for network traffic 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 10 other signatures 2->59 11 gG5dwIYGbEQZBt7.exe 3 2->11         started        signatures3 process4 signatures5 71 Tries to detect virtualization through RDTSC time measurements 11->71 73 Injects a PE file into a foreign processes 11->73 14 gG5dwIYGbEQZBt7.exe 11->14         started        process6 signatures7 75 Modifies the context of a thread in another process (thread injection) 14->75 77 Maps a DLL or memory area into another process 14->77 79 Sample uses process hollowing technique 14->79 81 Queues an APC in another process (thread injection) 14->81 17 explorer.exe 30 1 14->17 injected process8 dnsIp9 39 www.boatnirvanalife.com 91.195.240.117, 49742, 49743, 80 SEDO-ASDE Germany 17->39 41 conexoesnews.com 185.245.180.207, 49744, 49745, 80 QUICKPACKETUS Germany 17->41 43 parkingpage.namecheap.com 91.195.240.19, 49739, 49740, 80 SEDO-ASDE Germany 17->43 51 System process connects to network (likely due to code injection or exploit) 17->51 21 wlanext.exe 18 17->21         started        signatures10 process11 file12 33 C:\Users\user\AppData\...\418logrv.ini, data 21->33 dropped 35 C:\Users\user\AppData\...\418logri.ini, data 21->35 dropped 61 Detected FormBook malware 21->61 63 Tries to steal Mail credentials (via file / registry access) 21->63 65 Tries to harvest and steal browser information (history, passwords, etc) 21->65 67 5 other signatures 21->67 25 cmd.exe 2 21->25         started        29 firefox.exe 21->29         started        signatures13 process14 file15 37 C:\Users\user\AppData\Local\Temp\DB1, SQLite 25->37 dropped 69 Tries to harvest and steal browser information (history, passwords, etc) 25->69 31 conhost.exe 25->31         started        signatures16 process17
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Status:
Malicious
First seen:
2024-02-07 08:04:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:cz30 rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Formbook payload
Formbook
Unpacked files
SH256 hash:
39cc263b3ce3dc7dd7726f7d85004ed6c4e1750af2c275fa2c3c320c8c7c75aa
MD5 hash:
042c14b183b910e6e1168f74e16e78a7
SHA1 hash:
eda356228360bbf8f976cf1b9a00a1d56d1efc14
SH256 hash:
5fe50b7d9a6e9214e727581ebb1dfeb43e175c39ba3966684030f5da4c0c64bf
MD5 hash:
f6b2186dd134aed59815a420cc5ccc8c
SHA1 hash:
569326a8f69da0b50854f18c86805b019cd902fd
SH256 hash:
9b1179e89788c48c9b427880f730eed0985cb315ebaf046bc2cbb8274916c76d
MD5 hash:
6a229e523103a2932762d4b36569e6e7
SHA1 hash:
04de1bd2a3f5383d4a0a747fad3a55a1705eed6e
SH256 hash:
78fa533a638b518f838be240f431580d19df296894c35a0cfb3f652312d7d2aa
MD5 hash:
3ecef5ac7ba1208f98d5fa5f83b71507
SHA1 hash:
9feedc9ef4a646ef3a76a6b9b89ee41d2c6176a5
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:AgentTesla_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Author:malware-lu
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.

Malspam

Formbook

Executable exe 78fa533a638b518f838be240f431580d19df296894c35a0cfb3f652312d7d2aa

(this sample)

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