MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 429add11efba80f4e7d037b428d2dfc76e2c6904b5ff94ab0ccaa1fb4d665348. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: 429add11efba80f4e7d037b428d2dfc76e2c6904b5ff94ab0ccaa1fb4d665348
SHA3-384 hash: 3bc8b7925f7291eb3c511f3ed51b89c7923a0eabc82d3fad1a9c105279cbe4de1adf359365f64829aea12bef2a8efc61
SHA1 hash: 0c65de2146cfa001fcbc631f84fb0aad7f3ee3ed
MD5 hash: 6d626fa97d51af21b9856d7c0719ff7d
humanhash: double-green-harry-paris
File name:pos.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:413'696 bytes
First seen:2021-10-20 12:11:53 UTC
Last seen:2021-10-20 13:21:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:S89wAzW/2chyKAW2cYSJkXphO2H3RWxJ85KImSGfOgQrhvo9:S8Wn2eyWKWIUJ85Bmilvo
TLSH T13194F12976A8DE16D16E6376CDDEA00043FCB4036023DB2E6DC633EE49567E60905ACF
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/198823/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.29063.1536.8553.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61700795a9d585e6d52efe65/reports/32d5e5ed-7054-4f74-a302-e61448a3168f/overview
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/21b29e05-cb04-4e84-b658-4fa2bc7064d3
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/873852
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
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 506283 Sample: pos.exe Startdate: 20/10/2021 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 9 other signatures 2->52 10 pos.exe 7 2->10         started        process3 file4 34 C:\Users\user\AppData\Roaming\crfRzzma.exe, PE32 10->34 dropped 36 C:\Users\...\crfRzzma.exe:Zone.Identifier, ASCII 10->36 dropped 38 C:\Users\user\AppData\Local\...\tmp6342.tmp, XML 10->38 dropped 40 C:\Users\user\AppData\Local\...\pos.exe.log, ASCII 10->40 dropped 64 Uses schtasks.exe or at.exe to add and modify task schedules 10->64 66 Tries to detect virtualization through RDTSC time measurements 10->66 68 Injects a PE file into a foreign processes 10->68 14 pos.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 70 Modifies the context of a thread in another process (thread injection) 14->70 72 Maps a DLL or memory area into another process 14->72 74 Sample uses process hollowing technique 14->74 76 Queues an APC in another process (thread injection) 14->76 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 42 magazinadziavane.com 162.0.217.81, 49852, 80 ACPCA Canada 19->42 44 www.magazinadziavane.com 19->44 54 System process connects to network (likely due to code injection or exploit) 19->54 25 wlanext.exe 19->25         started        28 autoconv.exe 19->28         started        signatures10 process11 signatures12 56 Self deletion via cmd delete 25->56 58 Modifies the context of a thread in another process (thread injection) 25->58 60 Maps a DLL or memory area into another process 25->60 62 Tries to detect virtualization through RDTSC time measurements 25->62 30 cmd.exe 1 25->30         started        process13 process14 32 conhost.exe 30->32         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/429add11efba80f4e7d037b428d2dfc76e2c6904b5ff94ab0ccaa1fb4d665348/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-10-20 12:12:07 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iknn2eppxkapjz6qg62cruw7y5xcy2iewx7zjkymzkq7wtlgknea._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:u1bs rat spyware stealer trojan
Link:
https://tria.ge/reports/211020-pc65cshad5/
Behaviour
Creates scheduled task(s)
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.vgmpradio.com/u1bs/
Unpacked files
SH256 hash:
76103add05c8ca7a29efceafaa6d241c11de14c358d2a2f1dd33714c2423d3f3
MD5 hash:
245840d43ff7f615649fc1d41a34b349
SHA1 hash:
4318cc898f26f68f2042a9d5b262493f17528795
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/8a63711b-1a13-4ef3-ae40-57647bb3bc96/
Parent samples :
429add11efba80f4e7d037b428d2dfc76e2c6904b5ff94ab0ccaa1fb4d665348
1bb913d6f594107a8c8d4d64f9a3de85c602813d9ad93189b9949fbc8a93aa32
78670e73101801526b59bf2bdead06d95cad399ff72abadfc0e00ba557643c80
62678459c076b6993bbe9cc617bde236afe8a87906f5de98adc375665ba0a84f
3f329c3c43a80af4145116889d380b5022d7509b18a36143d3adf455d71ad02f
100a38f41bd7479fffee98011672258611db629db410d4ef622dc2b87ba5b6fe
SH256 hash:
2e64d58a18b93bb4a1be621c6901e252232e6c34f55d1b19c4656861232a158b
MD5 hash:
ad50b5107503dfa7d3068a33be148c8a
SHA1 hash:
4f67ec87ecb10e48ef14219a63d6d0a981ec2689
Link:
https://www.unpac.me/results/8a63711b-1a13-4ef3-ae40-57647bb3bc96/
SH256 hash:
6fee24a1398bb022d0c5b9059b9b21e7636fc3861866a583d0e49b7d0ca56d58
MD5 hash:
36e2528c3cb3ad299ea481283687cdd6
SHA1 hash:
1981340bc7be1aa8f78f942fc6f0724838e35a87
Link:
https://www.unpac.me/results/8a63711b-1a13-4ef3-ae40-57647bb3bc96/
SH256 hash:
429add11efba80f4e7d037b428d2dfc76e2c6904b5ff94ab0ccaa1fb4d665348
MD5 hash:
6d626fa97d51af21b9856d7c0719ff7d
SHA1 hash:
0c65de2146cfa001fcbc631f84fb0aad7f3ee3ed
Link:
https://www.unpac.me/results/8a63711b-1a13-4ef3-ae40-57647bb3bc96/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/429add11efba/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/429add11efba80f4e7d037b428d2dfc76e2c6904b5ff94ab0ccaa1fb4d665348

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: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.

Malspam

Formbook

gz 614ff5c0107fc94f69cd80eacc9d3f70a36330d5cd369064f477b15823050898

Formbook

Executable exe 429add11efba80f4e7d037b428d2dfc76e2c6904b5ff94ab0ccaa1fb4d665348

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 614ff5c0107fc94f69cd80eacc9d3f70a36330d5cd369064f477b15823050898
Cape
Cape
https://www.capesandbox.com/analysis/198823/

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