MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7f2e03d77484fcb0bc2796afcca6f80ef371a80589a7f8b5713edbd03460e35. 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 2 File information Comments
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SHA256 hash: a7f2e03d77484fcb0bc2796afcca6f80ef371a80589a7f8b5713edbd03460e35
SHA3-384 hash: cc2181e36bc56610ec26bc0316399495aa66868f1f4a789513235ac9e3ee55ac442119be83c77de1cf5c4d249eafcf27
SHA1 hash: 67f136c9f26d628daac5145dfc5841c46853d20e
MD5 hash: 0239c2686b86ba77c8ca35596a15b962
humanhash: diet-alaska-lactose-jig
File name:Revise Invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:754'688 bytes
First seen:2022-08-17 15:55:46 UTC
Last seen:2022-09-06 03:04:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:nXaV1ki3KJiVk830XkkS8fskSmUqcV5G+jyfxoVEdirDzfXwGWS2sY+/S:qVui3kXYyEB55jyfxLErDzfgJS2H
TLSH T151F4023532F8689BE42945F6245C9A4916F12C7BCE1EE7C9FCE3215644B6FC7390228B
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
340
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Revise Invoice.exe
Verdict:
Malicious activity
Analysis date:
2022-08-17 15:56:38 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ca445763-3001-450d-9c45-57d22c873ce6

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/299345/
Detection(s):
SecuriteInfo.com.BackDoor.RatNET.2.5777.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.W32.AIDetectNet.01.12627.30770.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62fd10122093f7352865a508/reports/c86ffa7e-7f4a-492d-bc63-98e569b49d1b/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cd1fd5f6-c2f8-41e5-8d75-da7e030c36c9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1053184
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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)
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 685701 Sample: Revise Invoice.exe Startdate: 17/08/2022 Architecture: WINDOWS Score: 100 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for dropped file 2->37 39 Antivirus / Scanner detection for submitted sample 2->39 41 12 other signatures 2->41 8 Revise Invoice.exe 7 2->8         started        process3 file4 27 C:\Users\user\AppData\...behaviorgraphNoxkQDIWyylO.exe, PE32 8->27 dropped 29 C:\...behaviorgraphNoxkQDIWyylO.exe:Zone.Identifier, ASCII 8->29 dropped 31 C:\Users\user\AppData\Local\...\tmpEA5B.tmp, XML 8->31 dropped 33 C:\Users\user\...\Revise Invoice.exe.log, ASCII 8->33 dropped 43 Writes to foreign memory regions 8->43 45 Adds a directory exclusion to Windows Defender 8->45 47 Injects a PE file into a foreign processes 8->47 12 RegSvcs.exe 8->12         started        15 powershell.exe 25 8->15         started        17 schtasks.exe 1 8->17         started        signatures5 process6 signatures7 49 Modifies the context of a thread in another process (thread injection) 12->49 51 Maps a DLL or memory area into another process 12->51 53 Sample uses process hollowing technique 12->53 55 Queues an APC in another process (thread injection) 12->55 19 explorer.exe 12->19 injected 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        process8 process9 25 explorer.exe 19->25         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a7f2e03d77484fcb0bc2796afcca6f80ef371a80589a7f8b5713edbd03460e35/
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
Create hunting rule
Status:
Malicious
First seen:
2022-08-16 21:27:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
23 of 26 (88.46%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u7zoaplxjbh4wc6cpfvpzstpqdxtogualcnh7c2xcpw32a2gby2q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/220817-tdcdlahfdp/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
8bf695133d102ff2bacbbeeb096a68f018399cea580173cf2d5fc2b1cafee833
MD5 hash:
71207e5078ee1432740dd3020941125e
SHA1 hash:
316eec4f3c7ba270c16f7ea871f2137488193a51
Detections:
win_formbook_g0
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win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/1738cd32-c7fe-4607-aac9-b3a52fe7c564/
Parent samples :
a7f2e03d77484fcb0bc2796afcca6f80ef371a80589a7f8b5713edbd03460e35
4de8bd2b215ae3de7dd2af33a00b438abdb097722dbcb7b9771a495361554222
65365eacd51c7064c0845a99df19605965607c70324e993d0f886ccbf3fe3635
a30502cad1cb62fe2961ca0d91d5bac2c35a0b942fa3094142068c78e307291b
250ae9c16a36aa8da79addebcfdb5a1b5d3ff7a24086fd558c58214e4270bc04
012686b058f5eb3ce0c150b8509e6594323f6bfaee67efcdb8bc4a10283ce2ee
SH256 hash:
142a873622002e1d8bca136f04b1d0573e7a70e278f494ef4874e3842d2b8f4d
MD5 hash:
cefcc9a47960b69a7ae46dd04f43fede
SHA1 hash:
828d9316b3d66f4a84a76960fb5b503d8f6c3df3
Link:
https://www.unpac.me/results/1738cd32-c7fe-4607-aac9-b3a52fe7c564/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/1738cd32-c7fe-4607-aac9-b3a52fe7c564/
SH256 hash:
1b72d49a5e3db7a7a157408ac93240c7e0316ed7f6ddd10befc1af7e4bf7f68c
MD5 hash:
9c1436a35d82492bd09b6d65e4eaf94a
SHA1 hash:
2177711310aef753f821b881a4ee7f64f3bc9ef8
Link:
https://www.unpac.me/results/1738cd32-c7fe-4607-aac9-b3a52fe7c564/
SH256 hash:
91d4c5f8a4f544020fc614c9ec6470a372547656fd20c417b45a34acc4dc7915
MD5 hash:
037ba13eedcd9b9eb914c6ecc80a107c
SHA1 hash:
1cd11d2ba02b2b4656c0c40b52cfd39151fbe6e0
Link:
https://www.unpac.me/results/1738cd32-c7fe-4607-aac9-b3a52fe7c564/
SH256 hash:
a7f2e03d77484fcb0bc2796afcca6f80ef371a80589a7f8b5713edbd03460e35
MD5 hash:
0239c2686b86ba77c8ca35596a15b962
SHA1 hash:
67f136c9f26d628daac5145dfc5841c46853d20e
Link:
https://www.unpac.me/results/1738cd32-c7fe-4607-aac9-b3a52fe7c564/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a7f2e03d7748/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/a7f2e03d77484fcb0bc2796afcca6f80ef371a80589a7f8b5713edbd03460e35

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
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.

Malspam

Formbook

Executable exe a7f2e03d77484fcb0bc2796afcca6f80ef371a80589a7f8b5713edbd03460e35

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/299345/

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