MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 19907e5318d4427729e86994feffe2418e2d6aa0c2a97b123bf553f80f0b89af. 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 5 File information Comments

SHA256 hash: 19907e5318d4427729e86994feffe2418e2d6aa0c2a97b123bf553f80f0b89af
SHA3-384 hash: 01bb7d42ef7176c8e8859d7bacb6b6adb920c5eafe82b42080f565596edc46b369e03c3b37e1065a52ccdc56afc24a06
SHA1 hash: 5fa2fd0746bce832c00c72a8a75d864ad1793b19
MD5 hash: b231e7d8369f13df570e824dd65c5e44
humanhash: high-north-johnny-five
File name:b231e7d8369f13df570e824dd65c5e44.exe
Download: download sample
Signature Formbook
File size:442'336 bytes
First seen:2023-01-12 15:46:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 3072:+fY/TU9fE9PEtuSbQAdM95pqs0eNntYHE2mEYgP90Wcmytku63N1fc7FYjjomLMm:oYa6S9m/KlmEL5gszc76C4uAC6WtlxM
TLSH T14494E6E19D84D88DC62DEFF22AB28AF3C34E57ED0F1999697230DF39185502C8784D96
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 f0d0b2f2d4d4ccf0 (1 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
b231e7d8369f13df570e824dd65c5e44.exe
Verdict:
Malicious activity
Analysis date:
2023-01-12 15:52:50 UTC
Tags:
formbook xloader trojan stealer

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 file in the %temp% directory
Creating a window
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
80%
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.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 783220 Sample: Gx1dBL11vH.exe Startdate: 12/01/2023 Architecture: WINDOWS Score: 100 36 www.511271.com 2->36 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 3 other signatures 2->56 12 Gx1dBL11vH.exe 19 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\Temp\eimznp.exe, PE32 12->34 dropped 15 eimznp.exe 12->15         started        process6 signatures7 66 Multi AV Scanner detection for dropped file 15->66 68 Detected unpacking (changes PE section rights) 15->68 70 Machine Learning detection for dropped file 15->70 72 3 other signatures 15->72 18 eimznp.exe 15->18         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Sample uses process hollowing technique 18->46 48 Queues an APC in another process (thread injection) 18->48 21 explorer.exe 1 18->21 injected process10 dnsIp11 38 www.gsr.africa 21->38 40 www.e-insurance.africa 21->40 58 System process connects to network (likely due to code injection or exploit) 21->58 25 chkdsk.exe 21->25         started        28 autofmt.exe 21->28         started        signatures12 process13 signatures14 60 Modifies the context of a thread in another process (thread injection) 25->60 62 Maps a DLL or memory area into another process 25->62 64 Tries to detect virtualization through RDTSC time measurements 25->64 30 cmd.exe 1 25->30         started        process15 process16 32 conhost.exe 30->32         started       
Threat name:
Win32.Trojan.NSISInject
Status:
Malicious
First seen:
2023-01-11 04:28:21 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:pe63 rat spyware stealer trojan
Behaviour
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
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
8310e43e80a2c513f000db5551b1bbcef7cf34a59d092a52a8e7cba6164e0a1b
MD5 hash:
3dfe391ab73d100a939502e28c279ee9
SHA1 hash:
c8d7124f3a0ab8166e784eb33e467ea6d40d6869
SH256 hash:
19907e5318d4427729e86994feffe2418e2d6aa0c2a97b123bf553f80f0b89af
MD5 hash:
b231e7d8369f13df570e824dd65c5e44
SHA1 hash:
5fa2fd0746bce832c00c72a8a75d864ad1793b19
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.

Web download

Formbook

Executable exe 19907e5318d4427729e86994feffe2418e2d6aa0c2a97b123bf553f80f0b89af

(this sample)

  
Delivery method
Distributed via web download

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