MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7db8c14f992f67da263487c6b28851387a566b91fb886f5bad590ac4a93ca3b5. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
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SHA256 hash: 7db8c14f992f67da263487c6b28851387a566b91fb886f5bad590ac4a93ca3b5
SHA3-384 hash: 048d2a7500998f2b524ec6c9bcfb3bd6cd6776e07870479a9f3a07e924f42d2e1c0a2099deae6bd900ae9254cdd5f6fe
SHA1 hash: 061fd221f5bd3b9862851326e82d08740fb17d9c
MD5 hash: 95c1cbc4902de31b40e192c2a3745563
humanhash: equal-ack-monkey-river
File name:contract signed.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:701'440 bytes
First seen:2022-08-15 15:00:48 UTC
Last seen:2022-08-17 09:48:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:j5Rdk9VmQXpv+r2/ACal3DApHS2kN9Q+andrPRPZM2TgiFmki9bF:9Rdk9Vh5vKok3DApHiNKzgEk
TLSH T1A3E4C09F2D9C5507CD790BB8EC9D028467F27DA53A01E6CE5CA3B096C5F239C9398D82
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 :
7
# of downloads :
255
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
contract signed.exe
Verdict:
Malicious activity
Analysis date:
2022-08-15 15:03:36 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1a9946f1-40b3-4c26-857e-75858b8f31c2

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/298696/
Detection(s):
Sanesecurity.Rogue.0hr.20220815-1534.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62fa5faf571cdf74350c60b3/reports/9ffb1150-e41a-4cb4-869a-da2b17c33458/overview
Result
Verdict:
UNKNOWN
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/74a78bc0-c8e9-45ed-9681-4448bbd84d42
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1051626
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in 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)
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)
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 dnsIp2 2 Behavior Graph ID: 684136 Sample: contract signed.exe Startdate: 15/08/2022 Architecture: WINDOWS Score: 100 49 www.sentec-usa.com 2->49 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for URL or domain 2->59 61 Antivirus detection for dropped file 2->61 63 12 other signatures 2->63 11 contract signed.exe 7 2->11         started        signatures3 process4 file5 41 C:\Users\user\AppData\...\wrthKLAyAn.exe, PE32 11->41 dropped 43 C:\Users\...\wrthKLAyAn.exe:Zone.Identifier, ASCII 11->43 dropped 45 C:\Users\user\AppData\Local\...\tmp85EB.tmp, XML 11->45 dropped 47 C:\Users\user\...\contract signed.exe.log, ASCII 11->47 dropped 65 Adds a directory exclusion to Windows Defender 11->65 67 Injects a PE file into a foreign processes 11->67 15 contract signed.exe 11->15         started        18 powershell.exe 23 11->18         started        20 powershell.exe 24 11->20         started        22 schtasks.exe 1 11->22         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 Queues an APC in another process (thread injection) 15->75 24 explorer.exe 15->24 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        process9 process10 32 control.exe 24->32         started        signatures11 51 Modifies the context of a thread in another process (thread injection) 32->51 53 Maps a DLL or memory area into another process 32->53 55 Tries to detect virtualization through RDTSC time measurements 32->55 35 cmd.exe 32->35         started        37 explorer.exe 32->37         started        process12 process13 39 conhost.exe 35->39         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7db8c14f992f67da263487c6b28851387a566b91fb886f5bad590ac4a93ca3b5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-15 12:11:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
43
AV detection:
21 of 25 (84.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pw4mct4zf5t5ujruq7dlfccrhb5fm24r7oeg6w5nlefmjkj4uo2q._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:o85a rat spyware stealer trojan
Link:
https://tria.ge/reports/220815-sdvphacbel/
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
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
3b24bbfee3565a866f8ca1c97c522f89f639db78d100a1b4624ae4c7f0e20f85
MD5 hash:
e899386905a6a4bbf58dba3be151fd35
SHA1 hash:
a047e3e077d60f29b0a97029afa5025c4aa05e5d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/3e34d716-2375-4b54-a95c-9a9113e86317/
Parent samples :
ae6fafd2214768aeacea617af4466426523e3bea6370f891820b5332d96f6523
df972d6bc3fe91c8008139f05460ca78aebb5b531f9dd26731f6b7652c73ee90
d16b5b8db05a9ea05420e30d325663b8eddefc11eb081b8c9786b6f2997b16e2
e30fc87ce3075c2d3cb6abfb9a3f1be26d8285b3aab8143787e0dcf976508af4
5be7e2a77b35c4a4b902b3d391f6b06f53595e759d322638641977a4a45a4b51
46d78943f26576a230170afb9b13179cb7e2aac34c3f9a7cd023192f7fcf9891
2101f7baea455a682ff9298a4d0d19c52f090f31ef2446927adfa9aa184d7f39
7b2071ebb9ae9a7dca9e456644d168cddbe283a4ee8d0853f9be86a064232865
514b1a8e0185810e3da1172ea43c787bdef254b38d926842a4fe7a5061eeeeb9
ac350e4d5fcb2fd0087addb5f00a8a0d73ca19f818ab1585f819ed25de47e60c
9db7ece2184b1d22f94206fd18d539e2da6bb438e02af04794a3fcb0b483d7df
7db8c14f992f67da263487c6b28851387a566b91fb886f5bad590ac4a93ca3b5
beb7b84d602883136adee892e73345e7272b14902cd7b7eb83b8df48220cb811
1fa99df50d9aed6e1225bff38ac2105b3c4867cf71646d4a6fa0d930885e3dfc
SH256 hash:
5ba7bf4eedfdbe36947a84525abcd2e6f6ff227883cb042f43c45c82b274871f
MD5 hash:
42b7a12c7f08e978afd296cf41030b9d
SHA1 hash:
d96312849863f1dc8f895a43fcf0b8d269f1380c
Link:
https://www.unpac.me/results/3e34d716-2375-4b54-a95c-9a9113e86317/
SH256 hash:
fe2dbc3eaf47a3b40055c195911908356fa270d77def5943addb0a2b48166def
MD5 hash:
c93b28f3e9be9daa6fc842aa3c9c4122
SHA1 hash:
462cee43ad774168e5e7871f8a7c489e7e24aa3a
Link:
https://www.unpac.me/results/3e34d716-2375-4b54-a95c-9a9113e86317/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/3e34d716-2375-4b54-a95c-9a9113e86317/
SH256 hash:
1b72d49a5e3db7a7a157408ac93240c7e0316ed7f6ddd10befc1af7e4bf7f68c
MD5 hash:
9c1436a35d82492bd09b6d65e4eaf94a
SHA1 hash:
2177711310aef753f821b881a4ee7f64f3bc9ef8
Link:
https://www.unpac.me/results/3e34d716-2375-4b54-a95c-9a9113e86317/
SH256 hash:
7db8c14f992f67da263487c6b28851387a566b91fb886f5bad590ac4a93ca3b5
MD5 hash:
95c1cbc4902de31b40e192c2a3745563
SHA1 hash:
061fd221f5bd3b9862851326e82d08740fb17d9c
Link:
https://www.unpac.me/results/3e34d716-2375-4b54-a95c-9a9113e86317/
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/7db8c14f992f67da263487c6b28851387a566b91fb886f5bad590ac4a93ca3b5

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
Create hunting rule
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

zip b69955bd1add746cf9ccaf7de2a31083b7c2b640433566f8405d4886573f2f68

Formbook

Executable exe 7db8c14f992f67da263487c6b28851387a566b91fb886f5bad590ac4a93ca3b5

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/298696/
  
Dropped by
SHA256 b69955bd1add746cf9ccaf7de2a31083b7c2b640433566f8405d4886573f2f68
  
Dropped by
MD5 f31eac29aea739edbf3b5ad893e00f35
  
Dropped by
SHA256 a683a905567bfaa39bb076bcb62024db68491e60d56cef72d5c0a5e11b560752
  
Dropped by
MD5 3ae15ac97523869d2d7e15198630750f
  
Dropped by
SHA256 5ec3f2ddc957785bdffcafa07c41cabe5b912ad6fc7e56b679e044252e597d60
  
Dropped by
MD5 8f672e1b18169beb725ae271df6d23c1

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