MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66e461f8245be149d5a3826d29c170d5960ade477be127c0fe2bc315e26067a3. 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 1
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SHA256 hash: 66e461f8245be149d5a3826d29c170d5960ade477be127c0fe2bc315e26067a3
SHA3-384 hash: 676f1c3345eaab80336563f499982a7b2e8917eaf71e9d0afee0bc400e227286c3130e82e453c078a2e093054d92fac4
SHA1 hash: b3303ebe7263a55a61e80407706711ca0727e496
MD5 hash: fc8b3a3005cdc80ce19af33a57010fa8
humanhash: social-steak-leopard-finch
File name:fc8b3a3005cdc80ce19af33a57010fa8
Download: download sample
Signature Formbook
Create hunting rule
File size:582'656 bytes
First seen:2023-10-26 07:33:32 UTC
Last seen:2023-10-26 09:39:39 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 12288:yG1tsT0hAbk1Y3qHBTsyyrHJLm3nI8UB6a2Si:D10YAoKgTTyr43
Threatray 146 similar samples on MalwareBazaar
TLSH T116C4120037F8A326E6FA1FF9D8B5A0514F39762A7875D24C1E9E50EF09A2F04C451B2B
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
327
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
lokibot
Create hunting rule
ID:
1
File name:
New Text Document.exe
Verdict:
Malicious activity
Analysis date:
2023-10-26 08:33:03 UTC
Tags:
opendir loader sinkhole trojan lokibot stealer redline stealc lumma formbook xloader smoke autoit rat asyncrat remote amadey botnet spyware metamorfo oski
Link:
https://app.any.run/tasks/2d8e849b-d515-4912-9aac-fb95608252b1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/456495/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/653a166ab38131f117a87707/reports/62b69426-5f5d-4738-bcba-9cc7bbd44c73/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/66e461f8245be149d5a3826d29c170d5960ade477be127c0fe2bc315e26067a3
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/25ccfc6e-b889-4a45-b4a6-d05656e949ea
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1332500
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
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
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: 1332500 Sample: 881SP1exr1.exe Startdate: 26/10/2023 Architecture: WINDOWS Score: 100 34 www.therenixgroupllc.com 2->34 36 www.therealnikib.com 2->36 38 14 other IPs or domains 2->38 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 48 9 other signatures 2->48 11 881SP1exr1.exe 3 2->11         started        signatures3 process4 signatures5 56 Tries to detect virtualization through RDTSC time measurements 11->56 58 Injects a PE file into a foreign processes 11->58 14 881SP1exr1.exe 11->14         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 7 1 14->17 injected process8 dnsIp9 28 www.lpqxmz.site 103.120.80.111, 49748, 80 WEST263GO-HKWest263InternationalLimitedHK Hong Kong 17->28 30 www.candicrem.com 199.34.228.191, 49752, 80 WEEBLYUS United States 17->30 32 8 other IPs or domains 17->32 40 System process connects to network (likely due to code injection or exploit) 17->40 21 chkdsk.exe 17->21         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/66e461f8245be149d5a3826d29c170d5960ade477be127c0fe2bc315e26067a3
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/66e461f8245be149d5a3826d29c170d5960ade477be127c0fe2bc315e26067a3/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-10-26 07:34:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m3sgd6belpqutvndqjwstqlq2wlavxshppqspqh6fpbrlytam6rq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0261bba1b146e0ab0e7fc470b2734574039afc12f98e57cb16d7d08056e969cb
Formbook
2eadbbb63c8c36c588958484ad8d5a044a689f72ea3cc81a9dcf4b1a829ff7e9
Formbook
55080fee4ee4ead649f0e1e4f4fed140e91dbe7b372adc0ff110994655d956cf
Formbook
5a7df187972e8ac7ffd69cfd57e9ec4490a36b915cb8beaeee8cceac12ab76c8
Formbook
795998e9064cb981d6a40a34fbeee48381121ea7ac7175ffe5b506b11cf843d7
Formbook
83fe062cb82d518d92a41e899c47291e38a613eb7b3c043712f6f20bb7d98bee
Formbook
bbcaa127862b5b70b5a833b3136f431c03a9165dd0a4646ba78922ebcc7ebdc3
Formbook
dc999aa2db84e4f91022be10a55e971c49da82960027b7482b44856fee46f9cc
Formbook
f73717ede50c0ae3573c34a1cca093a90b6e52265fd26b8bfbbfee5b84d57273
Formbook
+ 136 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:4hc5 rat spyware stealer trojan
Link:
https://tria.ge/reports/231026-jd367sed64/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
4c73a4b631dd55523e1d0d013e5650d80b12062e5642f8021907199af5376953
MD5 hash:
080cb33bd065324ef8edc668e1992ee2
SHA1 hash:
90439e17c3f0d1f50cafe6d3ff9f2f1ac4c50d88
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/c0d2e4da-77ed-4da8-b25e-443561c5393f/
Parent samples :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 hash:
797e57bd74a68f7b4808a213f5c319ee4f4b023bc73088175d4393dfee9fe329
MD5 hash:
3c927935fbd608e7628cc2c5ad7d52fd
SHA1 hash:
ee0c880c0614ac960fd641f7d479233584aed1d8
Link:
https://www.unpac.me/results/c0d2e4da-77ed-4da8-b25e-443561c5393f/
SH256 hash:
733a5f9e56458df13b2effe2d73858dbddeb410e517f56ba171920a3dc3a51dc
MD5 hash:
332d4eb76ee58dc632f9bdd11a3c1aca
SHA1 hash:
b8d1f42d4ec130f1cf7d84b2bb6aa640516a7515
Link:
https://www.unpac.me/results/c0d2e4da-77ed-4da8-b25e-443561c5393f/
SH256 hash:
2a8017fdd503fafea922ea9e2ebdd7948e8c83f792012a7712b4c386af1a1903
MD5 hash:
0ffc63965b5a4dabaf2c7b4325d5442b
SHA1 hash:
807d89da697a4153c67da85854f75c2d0e76e7c4
Link:
https://www.unpac.me/results/c0d2e4da-77ed-4da8-b25e-443561c5393f/
SH256 hash:
66e461f8245be149d5a3826d29c170d5960ade477be127c0fe2bc315e26067a3
MD5 hash:
fc8b3a3005cdc80ce19af33a57010fa8
SHA1 hash:
b3303ebe7263a55a61e80407706711ca0727e496
Link:
https://www.unpac.me/results/c0d2e4da-77ed-4da8-b25e-443561c5393f/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/66e461f8245b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

Web download

Formbook

Executable exe 66e461f8245be149d5a3826d29c170d5960ade477be127c0fe2bc315e26067a3

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2725956/
Cape
Cape
https://www.capesandbox.com/analysis/456495/

Comments


Avatar
zbet commented on 2023-10-26 07:33:33 UTC

url : hxxp://china.dhabigroup.top/_errorpages/sbinzx.exe