MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 86638c1e381b77cf90dd55e3cffeb1892e429d4389dcac150bab737ff471168e. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: 86638c1e381b77cf90dd55e3cffeb1892e429d4389dcac150bab737ff471168e
SHA3-384 hash: b06aa31377a31c549a2f4531189a4bc5cafb87563caaafc6b16517d51802ecbdf8ba54d31b1103d8379061bea390e3dd
SHA1 hash: 682e76fcfe3c9522dbbfdad7e1c41e938a324305
MD5 hash: fe575a54b7e0eeb2ab697fe89bfcbd5e
humanhash: vermont-west-hot-pluto
File name:new order confirmation_details.com
Download: download sample
Signature Formbook
File size:1'091'072 bytes
First seen:2022-10-18 07:26:21 UTC
Last seen:2022-10-24 07:21:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:UlA0oSTV1DJu7VX06wmbAcJhBTyof88wFsyqW8nYrJ0NPJj+sgrWwAY2XK8m:UlGSRdJW8mUShBTybjJ0NPVDEW22Xy
TLSH T159357CBA25D68516D5283275C4C3D1F32BFB5D60A062D1CB2AD31FAFBC012BBA547386
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 4810716969711048 (7 x SnakeKeylogger, 4 x Formbook, 4 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
234
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
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 725191 Sample: new order confirmation_deta... Startdate: 18/10/2022 Architecture: WINDOWS Score: 100 33 Multi AV Scanner detection for domain / URL 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 10 other signatures 2->39 10 new order confirmation_details.com.exe 3 2->10         started        process3 file4 27 new order confirma...details.com.exe.log, ASCII 10->27 dropped 13 new order confirmation_details.com.exe 10->13         started        process5 signatures6 47 Modifies the context of a thread in another process (thread injection) 13->47 49 Maps a DLL or memory area into another process 13->49 51 Sample uses process hollowing technique 13->51 53 Queues an APC in another process (thread injection) 13->53 16 explorer.exe 13->16 injected process7 dnsIp8 29 www.wf825.com 154.218.122.61, 49749, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 16->29 31 System process connects to network (likely due to code injection or exploit) 16->31 20 cscript.exe 16->20         started        signatures9 process10 signatures11 41 Modifies the context of a thread in another process (thread injection) 20->41 43 Maps a DLL or memory area into another process 20->43 45 Tries to detect virtualization through RDTSC time measurements 20->45 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-10-14 11:34:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
27 of 42 (64.29%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:p94a rat spyware stealer trojan
Behaviour
Enumerates system info in registry
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
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
535a0b3e0596a26dedd145e0732fa69f4eb42d2c9a87a972b44e79e2fd76f825
MD5 hash:
7241a753759b2ab23fa2d871a760c331
SHA1 hash:
9e5baa96017ff6de28cf1dabcc15baf3e9e35676
Detections:
FormBook win_formbook_auto win_formbook_g0
SH256 hash:
fa67f92a415c4e55a728352149993febf7145f95bef21fb8a04282d1398cc04d
MD5 hash:
6462c130907d5b557bed8f7f64174a31
SHA1 hash:
72ba31b75ddf12ca0f4cea4972e2a929207ae4a2
SH256 hash:
161903f7d5633a0cdc5d416c229e1af16ad3f5a6d11dbe8d500aa9151a273f62
MD5 hash:
b460e7cd67e88a80f0b65f65d28b1c4c
SHA1 hash:
fef017687483cf2b5b9d5f8061b6f0645fdcf779
SH256 hash:
af7ac1171b44c9a949ad80bfaf05095048d0b74cfb527f66479e22f47d340110
MD5 hash:
f696dc0e00cb8f70799ac3fcaa5f9f6a
SHA1 hash:
cde2283de5b89639ea52f6388feef8f77efc63ce
SH256 hash:
9332819a20f29ff0b8c329b9cc645a2b7168ff693e2b9d4aa342c50583fa5ac4
MD5 hash:
c7116e583389695a592a64de0f6624a8
SHA1 hash:
5ea031a7e57c81adca533aeed262f474a9ca29ca
SH256 hash:
0b0d3d3f866134c4a8cde5565e425e5a3189d4c914f65c04c8905a9eabe0567f
MD5 hash:
59343b68b4c97b3b46368b4329e1470c
SHA1 hash:
3ccaca807b5ad7feb8a7fa33e3324030fbf93d68
SH256 hash:
86638c1e381b77cf90dd55e3cffeb1892e429d4389dcac150bab737ff471168e
MD5 hash:
fe575a54b7e0eeb2ab697fe89bfcbd5e
SHA1 hash:
682e76fcfe3c9522dbbfdad7e1c41e938a324305
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.

Malspam

Formbook

Executable exe 86638c1e381b77cf90dd55e3cffeb1892e429d4389dcac150bab737ff471168e

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments