MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a2b06d9313d1317f16483b27f97bb569dffa8e22c1eddd25fe753a92146543b. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1a2b06d9313d1317f16483b27f97bb569dffa8e22c1eddd25fe753a92146543b
SHA3-384 hash: ff58591f9171c87dffe81da726ed04ee5dc6d900cee21f4cd416a7559d49d82e8d67ea4ec3f0a48bde3371a675b7ed80
SHA1 hash: 9e3099b600ec216cce43eb8718c979ff24f86254
MD5 hash: 827474099bfcd00925c35c17cfcbe2c6
humanhash: undress-october-beryllium-florida
File name:PL12040_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:219'332 bytes
First seen:2022-04-29 14:39:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:HNeZmdZhnfbDgpZmk0t3nFrHZyX/0vfsjBt6e+:HNld3TMpZmk0t3Frj3sjOt
TLSH T1052412A47964C1F3C46506339E39971AFEFED61630A8862F27606B1D3D26380CE0E797
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
275
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
PL12040_pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-04-29 14:55:18 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/c549632c-0abf-4e13-bceb-8b94e562b749

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/267837/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/626bf8c4801e66012b163d2e/reports/d0777c71-e563-4ac6-974a-64caf35eebb7/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e50d84b2-1404-4ec3-89b7-a3c7df832f47
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/985559
Signature
C2 URLs / IPs found in malware configuration
Found 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)
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
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 618051 Sample: PL12040_pdf.exe Startdate: 29/04/2022 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 4 other signatures 2->48 11 PL12040_pdf.exe 18 2->11         started        process3 file4 32 C:\Users\user\AppData\Local\...\jwxyvmezi.exe, PE32 11->32 dropped 14 jwxyvmezi.exe 11->14         started        process5 signatures6 58 Multi AV Scanner detection for dropped file 14->58 60 Tries to detect virtualization through RDTSC time measurements 14->60 17 jwxyvmezi.exe 14->17         started        process7 signatures8 34 Modifies the context of a thread in another process (thread injection) 17->34 36 Maps a DLL or memory area into another process 17->36 38 Sample uses process hollowing technique 17->38 40 Queues an APC in another process (thread injection) 17->40 20 explorer.exe 17->20 injected process9 signatures10 50 Uses ipconfig to lookup or modify the Windows network settings 20->50 23 ipconfig.exe 20->23         started        process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 23->52 54 Maps a DLL or memory area into another process 23->54 56 Tries to detect virtualization through RDTSC time measurements 23->56 26 cmd.exe 1 23->26         started        28 explorer.exe 2 153 23->28         started        process13 process14 30 conhost.exe 26->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1a2b06d9313d1317f16483b27f97bb569dffa8e22c1eddd25fe753a92146543b/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2022-04-29 10:13:19 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=divqnwjrhujrp4leqozh7f53k2o77khcfqpn3us745j2sikgkq5q._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s3s3 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220429-r1vgksbaf7/
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
072f4f8ae3bf501da1075c9689b1e76d2f3def6d05686be3af0f8a90f965d784
MD5 hash:
9d3c6d818a558a5718f0bc65bb953efb
SHA1 hash:
0631e3047afd1443452de5d323f2910eb371b75f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/056d4c11-4050-4bf4-a4bd-7d91b61fe340/
Parent samples :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 hash:
8ff17fa95f33a41003938875f13a909c2c0ce10d824541c8cfae50a1122d48db
MD5 hash:
0b3f6eb9a674da273a49ba056fa26a1e
SHA1 hash:
833c4185755609b25c0d85133b4a0b64bedbe018
Link:
https://www.unpac.me/results/056d4c11-4050-4bf4-a4bd-7d91b61fe340/
SH256 hash:
61031eb07fa875708e7c5292cb940af346e4bb427dbd614edbead6dcd58326d9
MD5 hash:
1ae91fc59dd746a373c8c8810773ba51
SHA1 hash:
d793fcfe9be5ec8e5870b3dd5745c3bf77a8fa93
Link:
https://www.unpac.me/results/056d4c11-4050-4bf4-a4bd-7d91b61fe340/
SH256 hash:
1a2b06d9313d1317f16483b27f97bb569dffa8e22c1eddd25fe753a92146543b
MD5 hash:
827474099bfcd00925c35c17cfcbe2c6
SHA1 hash:
9e3099b600ec216cce43eb8718c979ff24f86254
Link:
https://www.unpac.me/results/056d4c11-4050-4bf4-a4bd-7d91b61fe340/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1a2b06d9313d1317f16483b27f97bb569dffa8e22c1eddd25fe753a92146543b

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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 1a2b06d9313d1317f16483b27f97bb569dffa8e22c1eddd25fe753a92146543b

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/267837/

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