MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1259432f41bd872ef92450755035a516b40fcae624473c3dbd64efe7d89987b1. 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
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SHA256 hash: 1259432f41bd872ef92450755035a516b40fcae624473c3dbd64efe7d89987b1
SHA3-384 hash: e5a66d10045e1f24e02fe1baf420579b4a90422fa393d4c0d3375ff9248096f4c1601e09cc12933d78ff22f4c42a2ace
SHA1 hash: d4c7881c41908a28908a32e46ab01e0f82afcbe4
MD5 hash: 134e7cb7484eabfbab70b96763bf9051
humanhash: king-cup-william-oranges
File name:Befehl.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:406'528 bytes
First seen:2024-08-19 07:30:48 UTC
Last seen:2025-01-09 18:05:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:j1FxhzvZ74J5spMIUYYKUeq7a/WUuufzttMOtQb5:j7v54Jq1B6L7UuuLbM9b5
TLSH T1B184CF5D2BEA5954F5FE9F7955B0056903B8B86B4832F32E068010FD8F63B918E427B3
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
369
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Befehl.pdf.exe
Verdict:
Malicious activity
Analysis date:
2024-08-19 07:36:20 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/da14edaf-6f48-4f11-90d1-b425383c3dce

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.32500.11122.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c2f4baaa5b40be0aa07fbf
Tags:
Generic Network Static Stealth Msil
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
90%
Tags:
finger lolbin masquerade vbnet
Link:
https://www.filescan.io/uploads/66c2f4ba9a458267e53eb8b7/reports/5a55857d-d7d5-4853-bf8e-899e87f0d27e/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/1259432f41bd872ef92450755035a516b40fcae624473c3dbd64efe7d89987b1
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1e15da1e-85af-414a-a0ba-a63a957b9912
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1494800
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Double Extension File Execution
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1494800 Sample: Befehl.pdf.exe Startdate: 19/08/2024 Architecture: WINDOWS Score: 100 29 www.infominer.club 2->29 31 www.beaded-boutique.net 2->31 33 3 other IPs or domains 2->33 39 Suricata IDS alerts for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 12 other signatures 2->45 11 Befehl.pdf.exe 15 3 2->11         started        signatures3 process4 dnsIp5 37 imgurl.ir 185.49.85.22, 443, 49710 ASIATECHIR Iran (ISLAMIC Republic Of) 11->37 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->59 61 Switches to a custom stack to bypass stack traces 11->61 15 Befehl.pdf.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 2 other signatures 15->69 18 explorer.exe 52 1 15->18 injected process9 dnsIp10 35 d1q5azuvhrel40.cloudfront.net 18.245.86.102, 51672, 80 AMAZON-02US United States 18->35 47 System process connects to network (likely due to code injection or exploit) 18->47 22 cscript.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 55 Switches to a custom stack to bypass stack traces 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1259432f41bd872ef92450755035a516b40fcae624473c3dbd64efe7d89987b1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1259432f41bd872ef92450755035a516b40fcae624473c3dbd64efe7d89987b1/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-08-05 03:28:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cjmugl2bxwds56jekb2vannfc22a7sxgerdtypn5mtx6pwezq6yq._file
Verdict:
malicious
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:rn10 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/240819-jcdj6avcnj/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/28088ef3-4176-401f-91bd-d3d9cff5d3e1
Unpacked files
SH256 hash:
1259432f41bd872ef92450755035a516b40fcae624473c3dbd64efe7d89987b1
MD5 hash:
134e7cb7484eabfbab70b96763bf9051
SHA1 hash:
d4c7881c41908a28908a32e46ab01e0f82afcbe4
Link:
https://www.unpac.me/results/3dd5695b-a63c-4303-a5b2-adf4ffa727fc/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1259432f41bd/report/overview.html
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/1259432f41bd872ef92450755035a516b40fcae624473c3dbd64efe7d89987b1

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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 1259432f41bd872ef92450755035a516b40fcae624473c3dbd64efe7d89987b1

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

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