MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b575be29720f27a08220d8b155e68bb70cd1f0d3a9a3bfb261873f3fa639d6b6. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b575be29720f27a08220d8b155e68bb70cd1f0d3a9a3bfb261873f3fa639d6b6
SHA3-384 hash: fb7778c8de87f2f098d11a2b90e4cc3b83c366406d8fe938b959ab22383b900be1c13a52bc37d72ce0d6a0149673a10a
SHA1 hash: 613ef8cb6aa875f406905f68d4e42e4509e36bb9
MD5 hash: 59596155c337dcf53ce09d9fe86a289f
humanhash: pasta-fillet-wolfram-bluebird
File name:INV No. SMEPL03122-23 & PL.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:591'872 bytes
First seen:2022-06-30 05:37:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:N4pNv2iNxxv/SIt/Pb0miQ8FncMm8mH+CD1gOcNB:6/1P1aItr0RQ8Fncm01gOcNB
TLSH T1D8C4CF2636ACBA40C0BED7F93550671006F7420DF677D57E3EA6088D69C1FC26662BE2
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)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/284505/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62bd36bb931c17b842b5ccd2/reports/1ca064c5-41a1-4ffd-9df4-032fc7b720a3/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/92c9bff8-9876-44c5-8877-642b83d565a9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1022376
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
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
Performs DNS queries to domains with low reputation
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 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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 654872 Sample: INV No. SMEPL03122-23 & PL.... Startdate: 30/06/2022 Architecture: WINDOWS Score: 100 31 www.jmae.xyz 2->31 35 Snort IDS alert for network traffic 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 43 11 other signatures 2->43 11 INV No. SMEPL03122-23 & PL.pdf.exe 3 2->11         started        signatures3 41 System process connects to network (likely due to code injection or exploit) 31->41 process4 file5 29 C:\...\INV No. SMEPL03122-23 & PL.pdf.exe.log, ASCII 11->29 dropped 53 Injects a PE file into a foreign processes 11->53 15 INV No. SMEPL03122-23 & PL.pdf.exe 11->15         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 Queues an APC in another process (thread injection) 15->61 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.sdsguanfang.com 18->33 45 System process connects to network (likely due to code injection or exploit) 18->45 22 control.exe 18->22         started        signatures11 process12 signatures13 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 51 Tries to detect virtualization through RDTSC time measurements 22->51 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b575be29720f27a08220d8b155e68bb70cd1f0d3a9a3bfb261873f3fa639d6b6/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2022-06-30 03:23:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 40 (47.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wv234klsb4t2bara3cyvlzulw4gnd4gtvgr37mtbq47t7jrz223a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ba17 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220630-gbp6fsgbfn/
Behaviour
Modifies registry class
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
8907cb2eebb60f15cdca193062c945bb6bf44ef5c3f09c9d3196e8ff94113a41
MD5 hash:
e77d8f299e3655a1d164de139506b83a
SHA1 hash:
6d568dcb6244c51d94a60a203fe6f0484862a95a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/f35fd7ac-d6d8-40bb-b9d3-e48e8726dde0/
Parent samples :
e10cbd14bad3693345f6fa7d09e1336c1b2033900e1b1b55ccf0a76a98b1c79a
4ce459e96e27a319ea15c07994ae72c5df83c599bddbee3286558723bc55b20e
b575be29720f27a08220d8b155e68bb70cd1f0d3a9a3bfb261873f3fa639d6b6
6452e7934b058662751322258e57f91a8790ab089a93b17062646080e31ea24a
756a40a8fc86bb54ff4ead8e9d9c173b3051f4d77a60530b471a7be752f8bad6
1f364b54ed1d03b1f87fe2bf0d7a376029298c3250611dab92dcba2d210afe1d
205f40228597bee4de6da0f386c14fde658b7dc6956fb2839a98504b48bd9377
a88e5d5fb17e50a25cf6dfe2512fc45cc3f712dccccee2d08ee7d1dac7086e5e
SH256 hash:
c99cbd09cddd6b076a557626e34095b3ab0e6b41db656579787e43d77525b0d8
MD5 hash:
bc4aeaecf58db46c56cf775fb7eb062e
SHA1 hash:
4274fef9ff9dd3f4d933f847f6dfb8840342a90b
Link:
https://www.unpac.me/results/f35fd7ac-d6d8-40bb-b9d3-e48e8726dde0/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/f35fd7ac-d6d8-40bb-b9d3-e48e8726dde0/
SH256 hash:
2e7e2ddd94b8987b2183fff450f07d710168072c1041efad7aa4b2245268e64d
MD5 hash:
c483f09891703e33fcb7bde8bef40f6d
SHA1 hash:
01539abec8fbcab1b483fdcbc218e5508e69840b
Link:
https://www.unpac.me/results/f35fd7ac-d6d8-40bb-b9d3-e48e8726dde0/
SH256 hash:
b575be29720f27a08220d8b155e68bb70cd1f0d3a9a3bfb261873f3fa639d6b6
MD5 hash:
59596155c337dcf53ce09d9fe86a289f
SHA1 hash:
613ef8cb6aa875f406905f68d4e42e4509e36bb9
Link:
https://www.unpac.me/results/f35fd7ac-d6d8-40bb-b9d3-e48e8726dde0/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b575be29720f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/b575be29720f27a08220d8b155e68bb70cd1f0d3a9a3bfb261873f3fa639d6b6

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
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

File information

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

Malspam

Formbook

Executable exe b575be29720f27a08220d8b155e68bb70cd1f0d3a9a3bfb261873f3fa639d6b6

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/284505/

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