MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7952c76d1d86927893a2ef8ca0a23bb1b45af38565f2ad9cea09a942bd5059f8. 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
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SHA256 hash: 7952c76d1d86927893a2ef8ca0a23bb1b45af38565f2ad9cea09a942bd5059f8
SHA3-384 hash: 1e854fe181079fee1ad5bc01c66f669608f0adf0a510ab733052b7b47a82d99139bb831c0b2cd87c78c108d8bbaee20d
SHA1 hash: b3fee68e0d04e03c34ba546bc714096d13641815
MD5 hash: 6b25cd644f183af7c7447ba2d658e8c5
humanhash: virginia-ten-emma-fillet
File name:triage_dropped_file
Download: download sample
Signature Formbook
Create hunting rule
File size:721'408 bytes
First seen:2022-06-29 17:18:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:7f2GrPyNdSjqWjsZ5uEd2iN+cSBxaHoXbTeradCnncD+L4THtdy/1AkXWXxY:2dSj/W5X1P+xaIXuELykxy+kXWy
TLSH T1C2E4F1266BF45B05D6BA47B442E4523507BBB4222123E319DDC13AD92DB3B81CE1FB1B
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)
File icon (PE):PE icon
dhash icon ce9c9496e4949c9c (73 x AgentTesla, 51 x SnakeKeylogger, 30 x Formbook)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
248
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/284361/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62bc89c6a17f249ae3e67071/reports/71c09a3d-a635-490b-a599-0ebf581531c2/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cae1ef09-292b-4fa8-81fa-ae9f456f8d2d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1022076
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 654573 Sample: triage_dropped_file Startdate: 29/06/2022 Architecture: WINDOWS Score: 100 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus detection for URL or domain 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 7 other signatures 2->37 9 triage_dropped_file.exe 3 2->9         started        process3 file4 29 C:\Users\user\...\triage_dropped_file.exe.log, ASCII 9->29 dropped 45 Tries to detect virtualization through RDTSC time measurements 9->45 13 triage_dropped_file.exe 9->13         started        16 triage_dropped_file.exe 9->16         started        18 triage_dropped_file.exe 9->18         started        signatures5 process6 signatures7 47 Modifies the context of a thread in another process (thread injection) 13->47 49 Maps a DLL or memory area into another process 13->49 51 Sample uses process hollowing technique 13->51 53 Queues an APC in another process (thread injection) 13->53 20 cmd.exe 13->20         started        23 explorer.exe 13->23 injected process8 signatures9 39 Modifies the context of a thread in another process (thread injection) 20->39 41 Maps a DLL or memory area into another process 20->41 43 Tries to detect virtualization through RDTSC time measurements 20->43 25 cmd.exe 1 20->25         started        process10 process11 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7952c76d1d86927893a2ef8ca0a23bb1b45af38565f2ad9cea09a942bd5059f8/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-06-29 15:38:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pfjmo3i5q2jhre5c56gkbir3wg2fv44fmxzk3hhkbguufpkqlh4a._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:m56u rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220629-vvs84sdbf2/
Behaviour
Enumerates system info in registry
Gathers network information
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:
7ff037f525d6d0dd25c1c78529dd5da8c0e847f1d234d34911de2e88015386e0
MD5 hash:
a1e77401be14590790a9523f9c71f522
SHA1 hash:
07c90c592b106c9a1adcc4d205da072bc4ff0a9c
Detections:
win_formbook_g0
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win_formbook_auto
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FormBook
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Link:
https://www.unpac.me/results/908e7895-3d8e-49b2-a90b-3311617b58ad/
Parent samples :
8b44615acd4fd89243a9ec2bd8eaeef1c13eac7b28136874d02614d8c7e68a57
85a10f9329744d8c7ed58797d3a38beea00541b6fd45a51fe1e6887d4caf411f
8a3206a8bbf5056d7cb774be843c2a067aa8643e44c58c63e3e9cb65ce0f3fc4
2620668118d8ade45d0de6c49ea4c2af6213ff0e7d0b312b8ce8e080eba6c32b
b2834803a56b0fcfa98844491234dff7ffb74afd7e3adf821446f8c18955b585
7952c76d1d86927893a2ef8ca0a23bb1b45af38565f2ad9cea09a942bd5059f8
712d9e2373914cd9231c6c55a5d919efa6df53194b2c06b03695501dde071760
696ea6f69112d4d80b34a8dc589c16db71217fc6aa75567cb081bd02c56612b2
SH256 hash:
5723367d7cd48b98eb468740ee30085b10bfa3d6a9774e36936e6026aa58af05
MD5 hash:
ccb0686ddfcd782f6adaab81f29a9348
SHA1 hash:
fb2138780442d54c9b367ae901c7150c1d21f087
Link:
https://www.unpac.me/results/908e7895-3d8e-49b2-a90b-3311617b58ad/
SH256 hash:
0cb6aef1fa57d11408e47ae071485ef8f48c2982997b8d74b47a4151d85b978c
MD5 hash:
843aa6edf83bff7b61c6a5369ef41e95
SHA1 hash:
d1bfeec8eaac9a1dacf2f7062ce964d8e7d77085
Link:
https://www.unpac.me/results/908e7895-3d8e-49b2-a90b-3311617b58ad/
SH256 hash:
86bae8c821348fde3305cb1ee826a392f46e370b2ea174e7fb83af603f6626d7
MD5 hash:
b52d4d836543dc06fab3530343b14159
SHA1 hash:
8604bf4ddc12ba7e4a79e111af19181bf33dd650
Link:
https://www.unpac.me/results/908e7895-3d8e-49b2-a90b-3311617b58ad/
SH256 hash:
54eacf9bff5da940d472a88065f01ad0b186106d86fcef794065c2aa783aed3b
MD5 hash:
ed45b48c10274ed07c665800f03c21fa
SHA1 hash:
22150e694d12c7ba8f7091f6f246e8bcc48fc358
Link:
https://www.unpac.me/results/908e7895-3d8e-49b2-a90b-3311617b58ad/
SH256 hash:
7952c76d1d86927893a2ef8ca0a23bb1b45af38565f2ad9cea09a942bd5059f8
MD5 hash:
6b25cd644f183af7c7447ba2d658e8c5
SHA1 hash:
b3fee68e0d04e03c34ba546bc714096d13641815
Link:
https://www.unpac.me/results/908e7895-3d8e-49b2-a90b-3311617b58ad/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7952c76d1d86/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/7952c76d1d86927893a2ef8ca0a23bb1b45af38565f2ad9cea09a942bd5059f8

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 7952c76d1d86927893a2ef8ca0a23bb1b45af38565f2ad9cea09a942bd5059f8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2251461/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/284361/

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