MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7842152280a6b9e35c066ab3e485f143548d138538294114f3af9441dedc8783. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: 7842152280a6b9e35c066ab3e485f143548d138538294114f3af9441dedc8783
SHA3-384 hash: fd17e0d34a486fa2e20edce156bb856c11316a9b8f4c9d4415ec70abdfc5c389a88f1239b6e83bda4d97f16ec45d8057
SHA1 hash: 73295ecc139f759f5e3108a71f0aba48c525e750
MD5 hash: a3896ddc9dfa7f21be592c27613c7758
humanhash: kilo-friend-asparagus-mobile
File name:Invoice-pdf-.exe
Download: download sample
Signature Formbook
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File size:853'504 bytes
First seen:2023-01-21 01:17:45 UTC
Last seen:Never
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:dm7JGPJ3m+8ubkwvARNd210WLs3kR6MBdTvfA4OFe3pJLJ39Av0rw:dmgPk+bkwvARNd210/kcMJXZJ1600
TLSH T10805E18EA3958515EDAC0379C43788990B3BBE257D71E60F9587B4E90B333DE0126B4B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 0a1a185810144333 (3 x Formbook)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
181
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
Invoice-pdf-.exe
Verdict:
Malicious activity
Analysis date:
2023-01-12 04:53:52 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/e992c8b9-4291-457f-bd44-0babe769ec50

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/355212/
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.3345.23750.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Creating a process with a hidden window
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
67%
Tags:
anti-vm greyware packed
Link:
https://www.filescan.io/uploads/63cb3d4b447edb203a00037e/reports/b39ad611-ad90-4d77-83e9-91f8b2f33e09/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:
Generic Malware
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/732b8672-d748-4634-aa9c-4f63ff00cf39
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1156013
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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 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
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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: 788745 Sample: Invoice-pdf-.exe Startdate: 21/01/2023 Architecture: WINDOWS Score: 100 74 Snort IDS alert for network traffic 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 Antivirus detection for URL or domain 2->78 80 10 other signatures 2->80 10 Invoice-pdf-.exe 7 2->10         started        14 gKjEiUewVExW.exe 5 2->14         started        process3 file4 52 C:\Users\user\AppData\...\gKjEiUewVExW.exe, PE32 10->52 dropped 54 C:\Users\...\gKjEiUewVExW.exe:Zone.Identifier, ASCII 10->54 dropped 56 C:\Users\user\AppData\Local\...\tmp32FD.tmp, XML 10->56 dropped 58 C:\Users\user\...\Invoice-pdf-.exe.log, ASCII 10->58 dropped 84 Uses schtasks.exe or at.exe to add and modify task schedules 10->84 86 Adds a directory exclusion to Windows Defender 10->86 88 Tries to detect virtualization through RDTSC time measurements 10->88 16 Invoice-pdf-.exe 10->16         started        19 powershell.exe 21 10->19         started        21 schtasks.exe 1 10->21         started        23 Invoice-pdf-.exe 10->23         started        90 Multi AV Scanner detection for dropped file 14->90 92 Machine Learning detection for dropped file 14->92 94 Injects a PE file into a foreign processes 14->94 25 gKjEiUewVExW.exe 14->25         started        27 schtasks.exe 1 14->27         started        29 gKjEiUewVExW.exe 14->29         started        31 gKjEiUewVExW.exe 14->31         started        signatures5 process6 signatures7 66 Modifies the context of a thread in another process (thread injection) 16->66 68 Maps a DLL or memory area into another process 16->68 70 Sample uses process hollowing technique 16->70 72 Queues an APC in another process (thread injection) 16->72 33 explorer.exe 1 1 16->33 injected 37 conhost.exe 19->37         started        39 conhost.exe 21->39         started        41 conhost.exe 27->41         started        process8 dnsIp9 60 insurancecompanies-guide.site 64.190.62.22, 49697, 80 NBS11696US United States 33->60 62 htpland.com 103.48.194.200, 49695, 80 LVHN-AS-VNBranchofLongVanSystemSolutionJSC-HanoiV Viet Nam 33->62 64 4 other IPs or domains 33->64 82 System process connects to network (likely due to code injection or exploit) 33->82 43 systray.exe 33->43         started        46 WWAHost.exe 33->46         started        signatures10 process11 signatures12 96 Modifies the context of a thread in another process (thread injection) 43->96 98 Maps a DLL or memory area into another process 43->98 100 Tries to detect virtualization through RDTSC time measurements 43->100 48 cmd.exe 43->48         started        process13 process14 50 conhost.exe 48->50         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7842152280a6b9e35c066ab3e485f143548d138538294114f3af9441dedc8783/
Threat name:
ByteCode-MSIL.Trojan.Leonem
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Status:
Malicious
First seen:
2023-01-11 07:34:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
25 of 39 (64.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pbbbkiuau246gxagnkz6jbprinki2e4fhauucfhtv6kedxw4q6bq._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:a09e rat spyware stealer trojan
Link:
https://tria.ge/reports/230121-bnyepsac68/
Behaviour
Creates scheduled task(s)
Gathers network information
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
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
d27cca09bc9c42bec002b3416b73965fd718b28c81ce9e262913e907ce458833
MD5 hash:
e4231c3a128edb95b63b80418fbeeb30
SHA1 hash:
96cc8fe6281b8fab5af3dff964a4f9ab48809271
Detections:
FormBook
Create hunting rule
win_formbook_w0
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win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/01564cb0-1e0c-432e-9b5b-dd9bae579dfc/
Parent samples :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 hash:
d5718cfc5ded3ac791f539fab3a5559384b2a1694a0dc689f58e98e57bed18aa
MD5 hash:
207f7ee2a146b265261dbb94a29b06a9
SHA1 hash:
c2d0954cd772f6d6e6c020796fe90f3aee4c18bb
Link:
https://www.unpac.me/results/01564cb0-1e0c-432e-9b5b-dd9bae579dfc/
SH256 hash:
be0f46221fb7a979b3d91d6bb3763502d5a1f262bba99aecc17e50ebad2d8d9a
MD5 hash:
4cd68042c410d0e4203ecffa4d87e0a6
SHA1 hash:
bf633127d28fd700a942fd7342dbeb98f97009f2
Link:
https://www.unpac.me/results/01564cb0-1e0c-432e-9b5b-dd9bae579dfc/
SH256 hash:
ab2f8dbc2b147528cecac6ea1a8886951c424be0b2026743b39d97f0cbabb04c
MD5 hash:
77ab42f4bbbf4565846eb8953192d71f
SHA1 hash:
3c662c756cc31867c0473716a74e777a65ced550
Link:
https://www.unpac.me/results/01564cb0-1e0c-432e-9b5b-dd9bae579dfc/
SH256 hash:
ae284b95b989990294ccaa0b71fba4be59c806865372b0aa9303c54f9d3aa11e
MD5 hash:
2e5fdd4bc2dc96d842527a5f23da63b3
SHA1 hash:
2a0641bb34c436c0a98a7474c8fd9b61b2f631bf
Link:
https://www.unpac.me/results/01564cb0-1e0c-432e-9b5b-dd9bae579dfc/
SH256 hash:
7842152280a6b9e35c066ab3e485f143548d138538294114f3af9441dedc8783
MD5 hash:
a3896ddc9dfa7f21be592c27613c7758
SHA1 hash:
73295ecc139f759f5e3108a71f0aba48c525e750
Link:
https://www.unpac.me/results/01564cb0-1e0c-432e-9b5b-dd9bae579dfc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/7842152280a6b9e35c066ab3e485f143548d138538294114f3af9441dedc8783

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 7842152280a6b9e35c066ab3e485f143548d138538294114f3af9441dedc8783

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/355212/

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