MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 662165b7a33508c0c6f00d3d37d68094610bf0c2b791491aeb5b544f52fc6c8a. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: 662165b7a33508c0c6f00d3d37d68094610bf0c2b791491aeb5b544f52fc6c8a
SHA3-384 hash: d28f0a7ae8bbabc04b84e29f6b2cb316c5d32ccc299c547d153260345f104e6eb86fe9cca97f338df85e36971c205da2
SHA1 hash: 9c43ed40c234fb6688ed2a3b417f55b8bd1aa960
MD5 hash: 1d4544c32dab7eac20bb58f485e55afc
humanhash: snake-whiskey-crazy-twenty
File name:HALKBANK.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:671'744 bytes
First seen:2022-05-22 12:10:06 UTC
Last seen:2022-05-22 12:39:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'475 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:cpQGVbc5hVQLjWTqDns266+1n8co2Z6TNm41GnB3PlTQJzeAqXUwIJ:9GVbcGvWqDs2P3m41w1NTQd+XtIJ
TLSH T1A0E4124437E89F25D5FF5BF664A2120003B7F62E2113F71D4AA150E90DB3BA189927BB
TrID 54.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
23.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.8% (.EXE) Win64 Executable (generic) (10523/12/4)
4.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.3% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter abuse_ch
Tags:exe FormBook geo Halkbank TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
347
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
HALKBANK.exe
Verdict:
Malicious activity
Analysis date:
2022-05-22 12:20:41 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/4b1b605f-d49e-4067-a895-c1726812e3c0

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/273426/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Launching the process to change network settings
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/628a2859abd12523507f8c8e/reports/96d09109-5a8f-4897-8a81-85ff268f1a84/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/f30ea38c-28d1-460d-8472-09f8183bddec
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/999324
Signature
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 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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 631819 Sample: HALKBANK.exe Startdate: 22/05/2022 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 7 other signatures 2->40 10 HALKBANK.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\HALKBANK.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 HALKBANK.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 30 alfabranding.com 194.5.156.71, 80 AS-HOSTINGERLT Germany 17->30 32 www.alfabranding.com 17->32 42 System process connects to network (likely due to code injection or exploit) 17->42 21 cmd.exe 17->21         started        signatures10 process11 signatures12 44 Self deletion via cmd delete 21->44 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 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/662165b7a33508c0c6f00d3d37d68094610bf0c2b791491aeb5b544f52fc6c8a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-21 09:34:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=myqwln5dguembrxqbu6tpvuasrqqx4gcw6iusgxllnke6ux4nsfa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:e2e9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220522-pck7wsddbj/
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
5b01f027a64f907e5edcfc4ef22a4ae21dc30e773a589666fbb8a2f390ff1d21
MD5 hash:
ae141b03315976e3091a050af64b1bf7
SHA1 hash:
3f795dc025e5ee92c40ea0b124b8eb09b7d390be
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/58119047-6361-46d8-906e-90af61b07cb1/
Parent samples :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 hash:
187700e1704dbfc438d8e0e47ed6d15b4d4e0bffa638216eddfcc51ec0a2d617
MD5 hash:
3a0fe46229da323fff01b7e23b6c484b
SHA1 hash:
f795f8ad1a08e3ab98bc3db2b51683fdfba99f66
Link:
https://www.unpac.me/results/58119047-6361-46d8-906e-90af61b07cb1/
SH256 hash:
68df88348f0d27286b8428a30aca38579c395bd9f92fa3b32bf5ebd8a46750e4
MD5 hash:
b82e27d28f0e35fdd6d2958f02053008
SHA1 hash:
8e8f54792853115519cd039446af51d2963253ef
Link:
https://www.unpac.me/results/58119047-6361-46d8-906e-90af61b07cb1/
SH256 hash:
ecae2611b548df76552b4f93216530370b15da3ee222992df328d04781fa4ea2
MD5 hash:
10f97eb02cf9435e7c8f234a27065e24
SHA1 hash:
431fe5e2512d5736335e645cec0c62f417972560
Link:
https://www.unpac.me/results/58119047-6361-46d8-906e-90af61b07cb1/
SH256 hash:
662165b7a33508c0c6f00d3d37d68094610bf0c2b791491aeb5b544f52fc6c8a
MD5 hash:
1d4544c32dab7eac20bb58f485e55afc
SHA1 hash:
9c43ed40c234fb6688ed2a3b417f55b8bd1aa960
Link:
https://www.unpac.me/results/58119047-6361-46d8-906e-90af61b07cb1/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/662165b7a335/report/overview.html
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/662165b7a33508c0c6f00d3d37d68094610bf0c2b791491aeb5b544f52fc6c8a

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.

Cape
Cape
https://www.capesandbox.com/analysis/273426/

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