MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments
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SHA256 hash: f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31
SHA3-384 hash: 9efddd11777269abfe7641177961736d91c8b835f434fc2eac03f0deda6f70d44e129a2038a564909bf8604e8a697b95
SHA1 hash: c22886171d5f71e7fe654348d37d014b9679982e
MD5 hash: ca01f2f49df75d8a415c9ba7defa3a13
humanhash: black-skylark-apart-may
File name:transfer_20231124.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:793'600 bytes
First seen:2023-11-27 10:02:37 UTC
Last seen:2023-11-27 11:53:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:aMcFgMcC6GSXOmrsC1tG8hjGYfpBhtD/E:msGSXOUsW/hiY3E
Threatray 452 similar samples on MalwareBazaar
TLSH T198F41264B6EC4FCAE27E43FA4A85E10143B16E393532D30CAEC172CB05E5F9157A1A97
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
312
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/460595/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6564695b7485e5b1ecbce20f/reports/14b821bd-a8c9-4b95-b07b-b04f7f900b93/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31
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/82a227be-a37c-4cd3-8de1-e28f759b1e73
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1348415
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 domain / URL
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 virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1348415 Sample: transfer_20231124.exe Startdate: 27/11/2023 Architecture: WINDOWS Score: 100 30 www.mostbet-wti2.xyz 2->30 32 www.towncreek.net 2->32 34 11 other IPs or domains 2->34 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 50 10 other signatures 2->50 11 transfer_20231124.exe 3 2->11         started        signatures3 48 Performs DNS queries to domains with low reputation 30->48 process4 signatures5 60 Tries to detect virtualization through RDTSC time measurements 11->60 62 Injects a PE file into a foreign processes 11->62 14 transfer_20231124.exe 11->14         started        17 transfer_20231124.exe 11->17         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 19 explorer.exe 6 1 14->19 injected process8 dnsIp9 36 wsall.luo56134871.site.wcdnga.com 157.185.163.158, 49711, 80 QUANTILNETWORKSUS United States 19->36 38 www.303bxg303.com 107.149.180.240, 49720, 80 PEGTECHINCUS United States 19->38 40 5 other IPs or domains 19->40 52 System process connects to network (likely due to code injection or exploit) 19->52 23 svchost.exe 19->23         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 23->54 56 Maps a DLL or memory area into another process 23->56 58 Tries to detect virtualization through RDTSC time measurements 23->58 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-27 09:24:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6pccv3uwrs5ujz2pl4oa2mtwnbjszdjxhh3q6ave75q64zjkfuyq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
024aa4a117fa7c5952577b1e904510e09c0e048a7bfaf320fcbdb4f309c41ba5
Formbook
6a14e79be0398899cfc53dc234f9e51f13705afe8b2cf15c404923bb6706ea09
Formbook
925fa037b496ed141df2f58ee1eddac36a26a9ec3bf6888c7e4066764fa0f51c
Formbook
92a11969793b832918bec3384ffadd4c626a7888d97454f4790529566d462022
Formbook
982a9a52e532bbfe52941c4ab95c2899c1af75e9a3eee2b1977e3f49e8a3e71e
Formbook
bbcaa127862b5b70b5a833b3136f431c03a9165dd0a4646ba78922ebcc7ebdc3
Formbook
c7b9dfbcf65edd98aff82ea3e1ffe6b0f83eca9c3c892de4ac8681fc1a2bb6d1
Formbook
ea5cca67b84c377c1c50e3e978fa2bcf6d178e8ce9cb23971c3304359b23e435
Formbook
f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31
Formbook
f5fd6d272de7ed1db622c1e3fc51f5ce84338b700b94b7f86564e9f7f3de6b54
Formbook
+ 442 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ui23 rat spyware stealer trojan
Link:
https://tria.ge/reports/231127-l3crnafg7y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
d3fa9d3f5b96553421b7f68df18a9d1360dbe35a80ff46bfa7d1f55233c10d77
MD5 hash:
ff1d467cc897093cdbc8cbe5c70586cd
SHA1 hash:
258160d1ecbd0da5554f3eb237ab29aa88ef1c75
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/005755d3-44d4-4cbe-981c-47b155b1c730/
Parent samples :
f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31
7d3b18c39d3639ad23c44c26f01902954b589f0e4657806f22a512246fa8ee56
63e6f72454c13a1384aaf3eb5808a8e886bd0fa100ffe633d5d27ae24c5bc1ac
8ab34111f357482c7c1a01baf14706b2c596945d8657de988344caa1cd66c86d
5e172b1497a76076f9ca46f345383aad816d90c2c8799a7ec3520a85f38c2bdd
f419289ce6729bf9a7f90345784cc401855b13aded8d1968a1cce5a3e21268c4
032b1e0d5f7ccba48a546bc495c919ed0820cade8af61b0368dfc17c8cec6b38
432b45a1dc6f64167c65b55c1e2333f4884b1bc65952f5b3202e7317ac5d54ab
977649dac5dc9b83379b99ac67769d94ef4af83417d471c2d8729808ce0fccc5
9d0c10331d40a7cbeda5f8e93f7314ff0930b7e0338bcd113de8392c0e09091d
99edcf832cb9adb552c8b8994e627f1925f20731e8f15ce82e2711f42b4411d3
ed3666dd7717b088c56ed523b0726d73f9b17d2041ce07838c7c8bca29e4e5d3
a3a8b21586cf15fb1113fc72dd40f25be6c60ec3f823bc023e783a789a9b15c3
8fab6fc296f376b14d5e8e1d574338582febd49051a3e385b09a18e52850ff43
80f1abd5006e75632ccce2516b48be9abf23a9bf80a4dceeee1b73a6b7251b3a
SH256 hash:
0874ec8b0dbc76dab0c62d562509f2ebce10d2cb59f93f2c03580cbfa2ef7439
MD5 hash:
63449af89772f001075663461948a7e3
SHA1 hash:
da2f98d7dc66b702d6580147b1219da22ac1c302
Link:
https://www.unpac.me/results/005755d3-44d4-4cbe-981c-47b155b1c730/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/005755d3-44d4-4cbe-981c-47b155b1c730/
SH256 hash:
2a0290a662e89a81ed2d9c73e54a0aeba209fc36617f134cf0aaa74690db47db
MD5 hash:
4820945deb84d6bd26460e8a6ba0c622
SHA1 hash:
c519540ad21594fa45fcc2e6e15cfbea8b3449b9
Link:
https://www.unpac.me/results/005755d3-44d4-4cbe-981c-47b155b1c730/
SH256 hash:
f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31
MD5 hash:
ca01f2f49df75d8a415c9ba7defa3a13
SHA1 hash:
c22886171d5f71e7fe654348d37d014b9679982e
Link:
https://www.unpac.me/results/005755d3-44d4-4cbe-981c-47b155b1c730/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f3c42aee968c/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/f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31

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
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 f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/460595/

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