MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd. 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: 20


Intelligence 20 IOCs YARA 5 File information Comments
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SHA256 hash: 76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd
SHA3-384 hash: 10817e4998b113726cef6a0c3decd9b24d32138b626686a412ff8dee36a180e49f7f7293ebfb5ad7fbea05aab3cba9f3
SHA1 hash: 0dc82fcad56dab3c424772c2f662397e6377680d
MD5 hash: 93aa3f69e562e84221fdbf092b598695
humanhash: snake-nevada-purple-delaware
File name:COM404 PDF.exe
Download: download sample
Signature Formbook
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File size:733'184 bytes
First seen:2024-08-30 06:44:15 UTC
Last seen:2024-08-30 07:27:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:V7VVkSNxIjd1l3K7vyPQ5v7PLygpyjknwjPof7GmdSQsQw6kOIMishwK:VkAxIHl3KOk7zygkvQf7GmdVwrO3z
TLSH T195F4BE4D63208293E1482B74DA6EAF5902211C7C75C1DBE4F9A67F1BFEE1BA6543301A
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)
Magika pebin
File icon (PE):PE icon
dhash icon 6dd2d312dbc8cc49 (94 x Formbook, 5 x AgentTesla)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
487
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
COM404 PDF.exe
Verdict:
Malicious activity
Analysis date:
2024-08-30 06:46:00 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/34bb1018-7e70-486e-87c7-a354f530849c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BackDoor.AgentTeslaNET.29.12063.19857.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d16a70fe69a9e56049ecbb
Tags:
Generic Network Static Stealth Kryptik
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/66d16a735959a837dd12b66e/reports/2e6f0041-dad0-4ed5-8216-42f4388ff14a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/648f3ef2-be98-49db-b294-0e7f3b600481
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1501621
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
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
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1501621 Sample: COM404  PDF.exe Startdate: 30/08/2024 Architecture: WINDOWS Score: 100 31 www.farms-sophon.xyz 2->31 33 www.opentelemetry.shop 2->33 35 3 other IPs or domains 2->35 43 Suricata IDS alerts for network traffic 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 51 10 other signatures 2->51 11 COM404  PDF.exe 3 2->11         started        signatures3 49 Performs DNS queries to domains with low reputation 31->49 process4 file5 29 C:\Users\user\AppData\...\COM404  PDF.exe.log, ASCII 11->29 dropped 63 Injects a PE file into a foreign processes 11->63 15 COM404  PDF.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 2 other signatures 15->71 18 explorer.exe 49 7 15->18 injected process9 dnsIp10 37 www.online-gaming-66785.bond 185.53.179.92, 49714, 80 TEAMINTERNET-ASDE Germany 18->37 39 www.apolo77meledak.fun 45.194.53.13, 49713, 80 Africa-on-Cloud-ASZA Seychelles 18->39 41 www.opentelemetry.shop 13.248.169.48, 49711, 80 AMAZON-02US United States 18->41 53 System process connects to network (likely due to code injection or exploit) 18->53 22 help.exe 18->22         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 61 Switches to a custom stack to bypass stack traces 22->61 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/76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeyLogger
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Status:
Malicious
First seen:
2024-08-30 06:45:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o3fdx3nybm3slktm33j3in3quiyht4rzv6suc7kxwsywf5uczc6q._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:he2a discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/240830-hh2y9s1bqd/
Behaviour
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
Deletes itself
Formbook payload
Formbook
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f997ab9c-5999-4d10-b8fd-22855ebe5644
Unpacked files
SH256 hash:
f921549a051b326f6d4ed173ffb1cf7f42a7425c640f891ae6f41a8e99159e01
MD5 hash:
a6f4a41a3de1225afe98389d2669eb1d
SHA1 hash:
2ebd66b8fc73b977bb7089bd07f9eb334d8167c2
Detections:
FormBook
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win_formbook_g0
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win_formbook_auto
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win_formbook_w0
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Formbook
Create hunting rule
Link:
https://www.unpac.me/results/fb6648f5-24d2-4895-8be6-a42fcdf3564d/
Parent samples :
cc1b719f0ae40d0b53765aae8480474dbc7277428f56184d2dc94a0de5fbbf67
76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd
3c9bf33caa6aa11b1c87c50e1f0ae212744089508829a898bf7d9e7a3720d751
3e4d309ea6393d0740a3bd93c83b208ac59b3ddf2626bb279942ac48003454de
9f67248a754e414ffb2361932c591abe39581b21a20d51ccb46db5e534a9531c
761930655c92d23751075c7399bc4d384270fdeab881a8c486de0362a976b4d0
SH256 hash:
c22b6e2cfed3d7e9e0bc312aedb34dd32d9b8049319032ddc7557c9756cf07f7
MD5 hash:
afafe33158d5f82d678539141bbd0455
SHA1 hash:
5746d7bc26825f9bbf73487ee0dd5324d9a19288
Link:
https://www.unpac.me/results/fb6648f5-24d2-4895-8be6-a42fcdf3564d/
SH256 hash:
958eafab6d82588207b523b3bfbbdbc72d43f274ec79edbf306b810c13427abe
MD5 hash:
73da7a932a60701eccb395c3c3a3ed0f
SHA1 hash:
2f3ac8286b618c039ab1636646fa8e3737f110b9
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/fb6648f5-24d2-4895-8be6-a42fcdf3564d/
SH256 hash:
76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd
MD5 hash:
93aa3f69e562e84221fdbf092b598695
SHA1 hash:
0dc82fcad56dab3c424772c2f662397e6377680d
Link:
https://www.unpac.me/results/fb6648f5-24d2-4895-8be6-a42fcdf3564d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/76ca3bedb80b/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/76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
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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 76ca3bedb80b3725aa6cded3b43770a23079f239afa5417d57b4b162f682c8bd

(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 (HIGH_ENTROPY_VA)high

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