MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b723fa6187dd823012646cc23268f9a05550e8fb5018110df4ef24fa995d2141. 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 3 File information Comments
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SHA256 hash: b723fa6187dd823012646cc23268f9a05550e8fb5018110df4ef24fa995d2141
SHA3-384 hash: 1c0b3170338e4e0ce5dc487e086c85c24f663339d27970269f3bd069163cc7cf9dc4bb82e384a6253cf2f1964c84449c
SHA1 hash: 4adf80bc3bb9ca07d2367060a7f6e069d5d4a466
MD5 hash: 5e37b3d27287573d421f80f9428d3ddc
humanhash: uniform-tennessee-fanta-idaho
File name:5e37b3d27287573d421f80f9428d3ddc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:588'288 bytes
First seen:2023-08-08 07:16:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:4tyZF6zSLyojUYFRnbFeY6wJJ8uUG3tj7z:ayGzyyGreY3G5G31
Threatray 3'740 similar samples on MalwareBazaar
TLSH T17EC4238431DDDB58DD3893FE3924412D43B5B29D1666E72C4EA62CEE1963F0EDD01A83
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)
File icon (PE):PE icon
dhash icon 1000107171100000 (8 x AgentTesla, 3 x Formbook, 2 x Loki)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
264
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SOA510378.doc
Verdict:
Malicious activity
Analysis date:
2023-08-07 13:38:00 UTC
Tags:
exploit cve-2017-11882 loader formbook xloader stealer spyware
Link:
https://app.any.run/tasks/e520b8a0-4545-4728-843c-a75a1ccaabc3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/441253/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1995.5710.4740.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b723fa6187dd823012646cc23268f9a05550e8fb5018110df4ef24fa995d2141
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/a1d3e99a-1c05-40e3-89e3-eb2f04d8c07d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1287517
Signature
.NET source code contains potential unpacker
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1287517 Sample: mdxYtWmjoA.exe Startdate: 08/08/2023 Architecture: WINDOWS Score: 100 34 www.azino777-600.buzz 2->34 50 Multi AV Scanner detection for domain / URL 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 7 other signatures 2->56 10 mdxYtWmjoA.exe 3 2->10         started        signatures3 process4 signatures5 58 Tries to detect virtualization through RDTSC time measurements 10->58 60 Injects a PE file into a foreign processes 10->60 13 mdxYtWmjoA.exe 10->13         started        16 mdxYtWmjoA.exe 10->16         started        process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 13->62 64 Maps a DLL or memory area into another process 13->64 66 Sample uses process hollowing technique 13->66 68 Queues an APC in another process (thread injection) 13->68 18 cmd.exe 13->18         started        21 explorer.exe 1 1 13->21 injected process8 dnsIp9 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Tries to detect virtualization through RDTSC time measurements 18->46 24 cmd.exe 1 18->24         started        36 olliex.com 45.14.226.43, 49684, 80 SPECTRAIPSpectraIPBVNL Netherlands 21->36 38 www.thepresaleplug.com 52.39.50.38, 49685, 80 AMAZON-02US United States 21->38 40 2 other IPs or domains 21->40 48 System process connects to network (likely due to code injection or exploit) 21->48 26 autofmt.exe 21->26         started        28 autofmt.exe 21->28         started        30 autochk.exe 21->30         started        signatures10 process11 process12 32 conhost.exe 24->32         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b723fa6187dd823012646cc23268f9a05550e8fb5018110df4ef24fa995d2141/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-08-07 11:40:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w4r7uymh3wbdaetentbde2hzubkvb2h3kambcdpu54spvgk5efaq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0678008b99744da75d64b17e189a5f8934780a0ddf2384d8c24e4240f796dc34
Formbook
17da5b241a7c1a77d644c46063b11af84dbf96b2986e4c4c0b9b56c1689ae524
Formbook
1b28956f786cc8462290c89bbb169b660d377acd7a1867408bcd9362edb42a5b
Formbook
3868bc3ad364e26eb6a690198293725275ac8d1f9105cc1a72e206f82816aedf
Formbook
68f739e8cec56189a152729584f046954f13e32426331970eb755538a8008f1c
Formbook
a06ac680f7c3454cdfe9e777f1dc9e6867e3556d323986c428aead576d2ede5c
Formbook
c013e9e4bb6f07f8da27bedef4ca4e0b99790a4777e00692da5c8e78e47eb70c
Formbook
c7f690c33e83ce246c48b918864dae66b4b6964116046cfa34de6bd3a81c2964
Formbook
d0331b41b50c6134c07ad1ce0b33029ab18ca28e340577728e7818c2d1abeba6
Formbook
d088a3c1bbc7b1c97e5ce94d4a2e1f8ed7fcf7cef8e2b21d70ee15bb3f49d509
Formbook
+ 3'730 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ge83 rat spyware stealer trojan
Link:
https://tria.ge/reports/230808-h4dtkabb83/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
39c1213b71830dc3dbe542230f65109a68028a5f80c177918422a94c8efe25d4
MD5 hash:
b075ba1483d921aaf145aa40752897b5
SHA1 hash:
6f38c9ad869f9db7b3c412326b21eb6dde9edd9d
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/1c817d14-8da6-41f9-9cea-2c1cf91911ee/
Parent samples :
62d79b7612daa665c7f2769bad890f7d42fc26849f0baa1c596e601b0a724057
d088a3c1bbc7b1c97e5ce94d4a2e1f8ed7fcf7cef8e2b21d70ee15bb3f49d509
c013e9e4bb6f07f8da27bedef4ca4e0b99790a4777e00692da5c8e78e47eb70c
0678008b99744da75d64b17e189a5f8934780a0ddf2384d8c24e4240f796dc34
68f739e8cec56189a152729584f046954f13e32426331970eb755538a8008f1c
3868bc3ad364e26eb6a690198293725275ac8d1f9105cc1a72e206f82816aedf
c7f690c33e83ce246c48b918864dae66b4b6964116046cfa34de6bd3a81c2964
95c739685ac483d14260c45fef84686d505802b2a546531652de4b35b54ea8eb
a06ac680f7c3454cdfe9e777f1dc9e6867e3556d323986c428aead576d2ede5c
17da5b241a7c1a77d644c46063b11af84dbf96b2986e4c4c0b9b56c1689ae524
b723fa6187dd823012646cc23268f9a05550e8fb5018110df4ef24fa995d2141
05189b12acbe98448200d07fb553f915a88cd57ca1115bde87fba0dc77cc5f39
a16bbcd964ae89f1cae59ed66c22f1009830c91db528215972952d97433bfb71
bbd52311d6f6fcc5e1c1296fb53932cac1445ed4d3fe3872a2a8de1f83bd1bf0
651a4c3e35b647788a3eb33862d90bc7d58912e6e99ffb8a7bd4c759634fe67b
SH256 hash:
504410fd6158a7346f5a2e7b7714203b329d46dab5d129719410d5c325122804
MD5 hash:
74ed681a2d7aed1dae5627d4367474f8
SHA1 hash:
cad2df636d3f0710f69fdb18cbae03a332341dd3
Link:
https://www.unpac.me/results/1c817d14-8da6-41f9-9cea-2c1cf91911ee/
SH256 hash:
c70fd9be824cc8108255713329417e6c19e3e0ff28ef5eb6a34e1e04dc6c8af6
MD5 hash:
5a5034b6bd1aafa98d70cadbbebb0020
SHA1 hash:
63768d906b2ad3ef1ad9a3d30bfafb003df0a407
Link:
https://www.unpac.me/results/1c817d14-8da6-41f9-9cea-2c1cf91911ee/
SH256 hash:
acb4f2181a20567f3a024b4919e95a204633c49dd5fa694e73b2c508b2517f62
MD5 hash:
54382de0119d4daa02ec3edd0312168d
SHA1 hash:
0451e80a80e731f260afd2e7c60d9d79069b0a3b
Link:
https://www.unpac.me/results/1c817d14-8da6-41f9-9cea-2c1cf91911ee/
SH256 hash:
b723fa6187dd823012646cc23268f9a05550e8fb5018110df4ef24fa995d2141
MD5 hash:
5e37b3d27287573d421f80f9428d3ddc
SHA1 hash:
4adf80bc3bb9ca07d2367060a7f6e069d5d4a466
Link:
https://www.unpac.me/results/1c817d14-8da6-41f9-9cea-2c1cf91911ee/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b723fa6187dd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b723fa6187dd823012646cc23268f9a05550e8fb5018110df4ef24fa995d2141

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
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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.

Web download

Formbook

Executable exe b723fa6187dd823012646cc23268f9a05550e8fb5018110df4ef24fa995d2141

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2697841/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/441253/

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