MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7f4888239060a411b5a521d19e88bb1158189634f764383c2c2fc0bb84e01169. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7f4888239060a411b5a521d19e88bb1158189634f764383c2c2fc0bb84e01169
SHA3-384 hash: c1230c03981aa71d49daf4e45f4b746069cc639e4d28428db097b2e0dff1381ee679a24f0963c94081cb0eab5b14085d
SHA1 hash: 0235abecb63572501c39156bae7c3fa5dd451309
MD5 hash: ff59ad3b72e60b61f36287a4f11b36c5
humanhash: tango-helium-lake-indigo
File name:ff59ad3b72e60b61f36287a4f11b36c5.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:462'848 bytes
First seen:2021-12-16 09:27:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:wVxuHoA5QfJucv5ldsRNHEgfKDaaz/S+nz5jaamWauSK3:sYoA5G7vPdsRugfKWazZnzdZSK3
Threatray 12'258 similar samples on MalwareBazaar
TLSH T1F7A401003AB89B07D5BC43FD0865214413F291376547FB89BFD6B1EF1AA3B92895289B
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
157
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/214546/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61bb06aa8541392eb4ea4896/reports/50d30644-39b2-4869-abe7-ec1dc380c1b6/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c18a223f-5b6c-4d62-93e2-3bcb1692e36e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/908391
Signature
.NET source code contains potential unpacker
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 540867 Sample: sbPX52IrqB.exe Startdate: 16/12/2021 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Malicious sample detected (through community Yara rule) 2->33 35 Yara detected AntiVM3 2->35 37 5 other signatures 2->37 10 sbPX52IrqB.exe 3 2->10         started        process3 signatures4 47 Tries to detect virtualization through RDTSC time measurements 10->47 49 Injects a PE file into a foreign processes 10->49 13 sbPX52IrqB.exe 10->13         started        16 sbPX52IrqB.exe 10->16         started        process5 signatures6 51 Modifies the context of a thread in another process (thread injection) 13->51 53 Maps a DLL or memory area into another process 13->53 55 Sample uses process hollowing technique 13->55 57 Queues an APC in another process (thread injection) 13->57 18 explorer.exe 13->18 injected process7 process8 20 cmstp.exe 18->20         started        signatures9 39 Self deletion via cmd delete 20->39 41 Modifies the context of a thread in another process (thread injection) 20->41 43 Maps a DLL or memory area into another process 20->43 45 Tries to detect virtualization through RDTSC time measurements 20->45 23 cmd.exe 1 20->23         started        25 explorer.exe 1 155 20->25         started        27 explorer.exe 124 20->27         started        process10 process11 29 conhost.exe 23->29         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7f4888239060a411b5a521d19e88bb1158189634f764383c2c2fc0bb84e01169/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-16 09:28:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02a9e7458836d89cc02de2333176fcfdc9e462535e73e5b032f13e604b831b72
Formbook
129d230573fdb00a681a7f0c507bc16d2efcd08c4408f544f1d7653162b2cd92
Formbook
5c6bb4be3e5abfc077f779645b07502ad3f9357fa3c486db79d0a2fb4f470527
Formbook
5f5195f363ef21135a5b5298c2a3576bd03125eec094d769b25296eb0a2605b9
Formbook
64e3a0f2298f21833eb7a9c51aa0b2b8d3354bdcefb0156bb34371e3163d8b3d
Formbook
6a429876cbcc77bcf631c59404fb56765fe6668738577e6cc0ca9274dd810ab7
Formbook
9a51dc85d2abbf3f21781fc5b5788a1d6ae37b699712b952e5bde286f1d07ca5
Formbook
aba852eff9b53848b266228241991403993f7769587712794eb5f406ce4c9a6c
Formbook
b207cf6e0fe84692f4311e2768d913bae8005da5f7ed4cf1cee2459a6f62faa9
Formbook
b4dd5b1d79a6d7fb71d62379aec4338a4072a9736e1383d0d1ee185d02e47619
Formbook
+ 12'248 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:inug loader rat
Link:
https://tria.ge/reports/211216-lfb7lsbga2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
d328347d58137872b082ef6d4bccdf8401b360732e837497412ccb3f3464be9a
MD5 hash:
eaae333aaab69632e8f312d614e545d7
SHA1 hash:
95ca5bdc4f72a8fabca0893b9c00e2b3bb8846ec
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e51f4d83-847e-450e-b902-f3de1e02e4e4/
Parent samples :
9a51dc85d2abbf3f21781fc5b5788a1d6ae37b699712b952e5bde286f1d07ca5
7f4888239060a411b5a521d19e88bb1158189634f764383c2c2fc0bb84e01169
SH256 hash:
995e7178c1c32e3916cae19ecacfb28e02274a535c1b75f32b50130068c2a1d7
MD5 hash:
6490334b074bb838e7e6cabf4dc8ad76
SHA1 hash:
d42bcdefb5560c056b4b25656c18fb1e56f15882
Link:
https://www.unpac.me/results/e51f4d83-847e-450e-b902-f3de1e02e4e4/
SH256 hash:
8c8d6d2ff69fee99b5325835de83706e3aa9369cc4a2e9c47ec59553022a9a11
MD5 hash:
f3fcf7b1ebb4a7da394577c892998f85
SHA1 hash:
6380fa47dabd6e9f9b3044e379c4ac8aa1873083
Link:
https://www.unpac.me/results/e51f4d83-847e-450e-b902-f3de1e02e4e4/
SH256 hash:
7f4888239060a411b5a521d19e88bb1158189634f764383c2c2fc0bb84e01169
MD5 hash:
ff59ad3b72e60b61f36287a4f11b36c5
SHA1 hash:
0235abecb63572501c39156bae7c3fa5dd451309
Link:
https://www.unpac.me/results/e51f4d83-847e-450e-b902-f3de1e02e4e4/
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/7f4888239060a411b5a521d19e88bb1158189634f764383c2c2fc0bb84e01169

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
Create hunting rule
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 7f4888239060a411b5a521d19e88bb1158189634f764383c2c2fc0bb84e01169

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1887410/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/214546/

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