MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f628e41bea8ed095a2d6c6a716da8f279b92447ded02671c6ba1579cbfed8107. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: f628e41bea8ed095a2d6c6a716da8f279b92447ded02671c6ba1579cbfed8107
SHA3-384 hash: 67bcdf532cb55f4cf07c2e215b7b54376aaf929cbd4621a7869b540d607b3e342931761e5054e1343c19fc029f92aedd
SHA1 hash: 1e7dc69181775421fff0051618cfe965b37fc303
MD5 hash: a047c84ee2d5e6e00894463cee543e69
humanhash: ack-kilo-one-stream
File name:new FOB order.scr
Download: download sample
Signature Formbook
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File size:875'520 bytes
First seen:2022-09-30 05:30:50 UTC
Last seen:2022-09-30 07:08:26 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 12288:RFnv8xs8m+mCx6aY2ocuQRJ31z8PqB0WmQ2v6H:/0m+mCwalocuQflezv6H
TLSH T1DF15CF181325C607C87AA170D8D1F2B11FB49DD5836FC25B4DD87CBBF63A3A869A1362
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon f0e8e2c6c6e2e8f0 (5 x AgentTesla, 5 x SnakeKeylogger, 4 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
287
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/315037/
Detection(s):
SecuriteInfo.com.BackDoor.RatNET.2.23992.30950.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
67%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/63367f17c9e2f34354313e1a/reports/f9602dd7-ced2-4280-b4ff-d4b48948225b/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/2dbdc3d7-a15c-4033-b646-fafcb8cefa0d
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1080642
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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 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: 713199 Sample: new FOB order.scr.exe Startdate: 30/09/2022 Architecture: WINDOWS Score: 100 32 Multi AV Scanner detection for domain / URL 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for URL or domain 2->36 38 11 other signatures 2->38 10 new FOB order.scr.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\new FOB order.scr.exe.log, ASCII 10->28 dropped 48 Injects a PE file into a foreign processes 10->48 14 new FOB order.scr.exe 10->14         started        signatures5 process6 signatures7 50 Modifies the context of a thread in another process (thread injection) 14->50 52 Maps a DLL or memory area into another process 14->52 54 Sample uses process hollowing technique 14->54 56 Queues an APC in another process (thread injection) 14->56 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.wolacannabis.net 66.96.160.205, 49698, 80 BIZLAND-SDUS United States 17->30 40 System process connects to network (likely due to code injection or exploit) 17->40 21 cmd.exe 17->21         started        signatures10 process11 signatures12 42 Modifies the context of a thread in another process (thread injection) 21->42 44 Maps a DLL or memory area into another process 21->44 46 Tries to detect virtualization through RDTSC time measurements 21->46 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/f628e41bea8ed095a2d6c6a716da8f279b92447ded02671c6ba1579cbfed8107/
Threat name:
Win32.Trojan.Leonem
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Status:
Malicious
First seen:
2022-09-19 18:46:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6yuoig7kr3ijliwwy2trnwupe6nzerd55ubgohdluflzzp7nqedq._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:awqu rat spyware stealer trojan
Link:
https://tria.ge/reports/220930-f7qanacfc3/
Behaviour
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
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/43650feb-8ae6-47e8-99ef-9452cd1ac668
Unpacked files
SH256 hash:
4dc7182f06dad062aea5e49049a7539c179579f2a4f36b01faf193a194b6a886
MD5 hash:
83c5dab1c5f6fd7724d1832d93bbd7bb
SHA1 hash:
5d8ceec9d3493c5ef6952058aac1c154b14958cb
Detections:
FormBook
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/a828cb04-be67-4f2e-b203-ebb77868b890/
Parent samples :
78baa36f2d7dc4a5461fbe4fa0829151bb84361047d4d3cf4adad84308177afd
c64d8714c8a7f6b7bfc839f9eec5f94aa157edc6bbebfb689bba1a257f9d8b9f
52bef3649c647d6756ada63ece1abccb6fbb5fe17544c3feaac5ab6404db0f9d
959fc8883e6b1d4ab77f9738792435e2dae1969530f36d2672db6cb397778687
8f361d8882f426ba9ebfe5c5d76a9a459cb8554d93c369864726dda441026876
f98164ac93972b99b06193e8fb9b1eaf20e0314822aefcdbe0df98bf5f984935
69c48053b4c08b71583defe258500cbcbcabc163d8ccb0a16a656ae2d1e775da
314e94266446785d903e9183fd752aa7a4beb6c131879011b6fe7794f7620b3a
f628e41bea8ed095a2d6c6a716da8f279b92447ded02671c6ba1579cbfed8107
07ed72a4bb4104975ab6854613bea6283bd16a3948e6d5c8531edd51ca21870d
0d35673790a88eb04f425071466735dec1aa2b0d8e3b3714ab53e93dbd824d96
b8278bf8900a451a507c52e5fe3e886cf2ee5b3f65488eaf9c288318e0fd52a8
SH256 hash:
71e9e3e2f27b382abcb97660b103a4259cb80ba24bdb32e35f50cf515d166740
MD5 hash:
338ff87b42a297b131f2f91d21cf411a
SHA1 hash:
bc844159d8d21ea6b99acd43b3bbbb3e290dbda7
Link:
https://www.unpac.me/results/a828cb04-be67-4f2e-b203-ebb77868b890/
SH256 hash:
d3e284c10d961b2ca914613630b8c2330b3710b313fac315c71788b3175d38d2
MD5 hash:
eff3144e60c99e672dd10c5fe3768bec
SHA1 hash:
9d03b4565e3bd8c6b85c23683849ce931b03fded
Link:
https://www.unpac.me/results/a828cb04-be67-4f2e-b203-ebb77868b890/
SH256 hash:
44c50087cbd9a86677ff5b898c1ad52abf5f25297179a174edcc8b81dec967fc
MD5 hash:
d012ba9057bf67c7f29871326f2af919
SHA1 hash:
1d5b8b512b37f0e1900496b578117082929654c7
Link:
https://www.unpac.me/results/a828cb04-be67-4f2e-b203-ebb77868b890/
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
Link:
https://www.unpac.me/results/a828cb04-be67-4f2e-b203-ebb77868b890/
SH256 hash:
f628e41bea8ed095a2d6c6a716da8f279b92447ded02671c6ba1579cbfed8107
MD5 hash:
a047c84ee2d5e6e00894463cee543e69
SHA1 hash:
1e7dc69181775421fff0051618cfe965b37fc303
Link:
https://www.unpac.me/results/a828cb04-be67-4f2e-b203-ebb77868b890/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f628e41bea8e/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/f628e41bea8ed095a2d6c6a716da8f279b92447ded02671c6ba1579cbfed8107

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.

Malspam

Formbook

Executable exe f628e41bea8ed095a2d6c6a716da8f279b92447ded02671c6ba1579cbfed8107

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/315037/

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