MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf77d2a22aab1da7767128bcfdc9e1b31d46619a044b932b9dfa37cdc43eb65c. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf77d2a22aab1da7767128bcfdc9e1b31d46619a044b932b9dfa37cdc43eb65c
SHA3-384 hash: b1976cbfb165669b61a5bad3a6cf7b6702841f2834db0b81deb51a69f15fff37d896577020ee5067e16d35d75b229f7c
SHA1 hash: 3d9d42c97d33a5979077fab76175a49ee43cac35
MD5 hash: f2afb3bbf0504d71d72c254cf9227cf2
humanhash: march-william-grey-mississippi
File name:Versanddetails.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:2'245'632 bytes
First seen:2022-08-05 08:44:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:pjskzkcQ/s18ENRSN/Vwii9UiK9IKHFEmAbG8bdIJ8gXA4LS7rI92sD4:pYkIcrmASN+vnKJlEmAgHpu4As
TLSH T14EA57BBA7482D7918FBA5CDA2DEB18F1B38F5559CC5B0CD1F390C03CB465E101A6E1AA
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon eaae8a9ea69ae8b0 (33 x Formbook, 4 x SnakeKeylogger, 1 x AgentTesla)
Reporter FORMALITYDE
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
282
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Versanddetails.zip
Verdict:
Malicious activity
Analysis date:
2022-08-05 06:49:07 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/59518768-aa27-432e-8303-dfe68d3b1453

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/296605/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Searching for synchronization primitives
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Searching for the window
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/62ecd9085c07b66577fe23c4/reports/b34d12d8-4bb8-4536-8ad5-5ba69347d7a1/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/17bcbe8e-2cf6-41a9-add2-05b64befa4bc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1046648
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
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
Writes to foreign memory regions
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 679142 Sample: Versanddetails.exe Startdate: 05/08/2022 Architecture: WINDOWS Score: 100 34 Snort IDS alert for network traffic 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus / Scanner detection for submitted sample 2->38 40 9 other signatures 2->40 10 Versanddetails.exe 1 2->10         started        process3 file4 28 C:\Users\user\...\Versanddetails.exe.log, ASCII 10->28 dropped 50 Writes to foreign memory regions 10->50 52 Injects a PE file into a foreign processes 10->52 14 InstallUtil.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 2 other signatures 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 alakazam.wtf 63.250.38.32, 49778, 80 NAMECHEAP-NETUS United States 17->30 32 www.alakazam.wtf 17->32 42 System process connects to network (likely due to code injection or exploit) 17->42 21 wlanext.exe 17->21         started        signatures10 process11 signatures12 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bf77d2a22aab1da7767128bcfdc9e1b31d46619a044b932b9dfa37cdc43eb65c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-05 08:32:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x535firkvmo2o5trfc6p3spbwmoumym2arfzgk457i343rb6wzoa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:nt19 rat spyware stealer trojan
Link:
https://tria.ge/reports/220805-knp8rsabcp/
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
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
2bdc7f173007bb012d4aeb8841698d64436b770b81d7dfc016ec97847fcc7067
MD5 hash:
0c27130296ba7f1a6c57c9006845847a
SHA1 hash:
91cc0ef6c1b151060cb150a91a1ed794c20eea87
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/75fd2a91-c523-4d58-b406-769b0ac60771/
Parent samples :
bf77d2a22aab1da7767128bcfdc9e1b31d46619a044b932b9dfa37cdc43eb65c
f136efd23d0c964f4f89f9a00263c011f6a7883978b92016d52196cf8647cca3
SH256 hash:
8e34c3fb09be6c34ca6ddc6eb29f5e6e9b94e1b640a248873c61947415dfd65e
MD5 hash:
fe2269e3caf4f200483d06aa218d9772
SHA1 hash:
210ccfc531c880f7a99907cfdc9a13c0c0c9b9d8
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/75fd2a91-c523-4d58-b406-769b0ac60771/
SH256 hash:
2c4c2ce003a7e53534fb7e66a94a92445be2329cffdee4eb6f4e0da97e714199
MD5 hash:
1b2611dc2225d4460e0a2e8f14373246
SHA1 hash:
1ec0732a7d5dac751850355cc18f046e91e870c9
Link:
https://www.unpac.me/results/75fd2a91-c523-4d58-b406-769b0ac60771/
SH256 hash:
bf77d2a22aab1da7767128bcfdc9e1b31d46619a044b932b9dfa37cdc43eb65c
MD5 hash:
f2afb3bbf0504d71d72c254cf9227cf2
SHA1 hash:
3d9d42c97d33a5979077fab76175a49ee43cac35
Link:
https://www.unpac.me/results/75fd2a91-c523-4d58-b406-769b0ac60771/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bf77d2a22aab/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/bf77d2a22aab1da7767128bcfdc9e1b31d46619a044b932b9dfa37cdc43eb65c

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
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.

Malspam

Formbook

Executable exe bf77d2a22aab1da7767128bcfdc9e1b31d46619a044b932b9dfa37cdc43eb65c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/296605/

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