MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 492cabb55a2f649ce32194e8f9737a51f071b370bc9cd527aa8cd0b844ee7ea8. 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: 16


Intelligence 16 IOCs YARA File information Comments

SHA256 hash: 492cabb55a2f649ce32194e8f9737a51f071b370bc9cd527aa8cd0b844ee7ea8
SHA3-384 hash: 5e30bb2fdc4e163e24b52c60391470c4e269b71d0bd6954bc6341c7322962f1c4959a2999a28b29f54819f1e01e1a020
SHA1 hash: b97e5090bbd2ebb938a127035c97932a75cd5bc3
MD5 hash: 616ffb5f7df8c5c1d23c3311dc6efdec
humanhash: winner-carbon-mockingbird-delta
File name:O# GOSUSNH1637860.exe
Download: download sample
Signature Formbook
File size:456'772 bytes
First seen:2023-01-09 08:29:47 UTC
Last seen:2023-01-09 15:17:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 12288:KYzunR1fqkuJ/1bzkH96iaMYyzxZqu/Yz:KYzunPfqkuJ1UH9OixZqu/Yz
TLSH T171A44818273C8064DDBD33F45E37FCA2FE952E1316349D4D098E79AA2DBC699C13258A
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f0ccb2aa3396e831 (1 x Formbook)
Reporter cocaman
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
5
# of downloads :
175
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
O# GOSUSNH1637860.exe
Verdict:
Malicious activity
Analysis date:
2023-01-09 08:33:03 UTC
Tags:
trojan formbook stealer opendir

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

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
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
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
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 dropped file
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 dnsIp2 2 Behavior Graph ID: 780564 Sample: O# GOSUSNH1637860.exe Startdate: 09/01/2023 Architecture: WINDOWS Score: 100 28 www.allthekey.com 2->28 30 allthekey.com 2->30 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 2 other signatures 2->52 10 O# GOSUSNH1637860.exe 19 2->10         started        signatures3 process4 file5 26 C:\Users\user\AppData\Local\...\wtntqgh.exe, PE32 10->26 dropped 13 wtntqgh.exe 10->13         started        process6 signatures7 64 Multi AV Scanner detection for dropped file 13->64 66 Machine Learning detection for dropped file 13->66 68 Maps a DLL or memory area into another process 13->68 70 Contains functionality to detect sleep reduction / modifications 13->70 16 wtntqgh.exe 13->16         started        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 explorer.exe 16->19 injected process10 dnsIp11 32 www.wanknumbers.co.uk 81.17.29.147, 49697, 80 PLI-ASCH Switzerland 19->32 34 mon-coin-priere.store 185.154.137.201, 49701, 49702, 49703 O2SWITCHFR France 19->34 36 4 other IPs or domains 19->36 54 System process connects to network (likely due to code injection or exploit) 19->54 23 cmmon32.exe 13 19->23         started        signatures12 process13 signatures14 56 Tries to steal Mail credentials (via file / registry access) 23->56 58 Tries to harvest and steal browser information (history, passwords, etc) 23->58 60 Modifies the context of a thread in another process (thread injection) 23->60 62 Maps a DLL or memory area into another process 23->62
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-01-09 02:09:06 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
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
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
7e12c0451c7c8b731aa8a35aee524abeee10706bcae4a0b4629c5f7390814b46
MD5 hash:
4f19ec9db71527fb68f66f542cfcb7a2
SHA1 hash:
1a946e52ed9e37259914bea16f68dc7b1b399b61
Detections:
win_formbook_auto win_formbook_g0
SH256 hash:
30b94332c59fb52e4ef32e2f55d0a55a356843ab88bf2efbb185ab9f58208cec
MD5 hash:
567eead37c112b5a8ba06e5caed24807
SHA1 hash:
6cd98f6b2e5de68f928d83983379851471ba304c
SH256 hash:
15fc1446c5ada4695d74affb7bedfecb5cf144d3055033c5a2d2b23ac2f7e16b
MD5 hash:
abfd12501e60f28ec4e3d629a2ff698e
SHA1 hash:
f0f7dcb742537659935cb3993be4658bdc7147cf
SH256 hash:
492cabb55a2f649ce32194e8f9737a51f071b370bc9cd527aa8cd0b844ee7ea8
MD5 hash:
616ffb5f7df8c5c1d23c3311dc6efdec
SHA1 hash:
b97e5090bbd2ebb938a127035c97932a75cd5bc3
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

Formbook

Executable exe 492cabb55a2f649ce32194e8f9737a51f071b370bc9cd527aa8cd0b844ee7ea8

(this sample)

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