MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40dcfb704112265b383679baa3064cd7355bd02119b117f396e1b0283342362c. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40dcfb704112265b383679baa3064cd7355bd02119b117f396e1b0283342362c
SHA3-384 hash: f383f773b83a66db62b54db90f15a4adea83b116447502d09d3b884d41a2c5c8c39f809952106c15096100dec71604d8
SHA1 hash: 93ef457bfcbc5f0860b1b7f6353ed6e9b0afd60e
MD5 hash: f5bea76ffac05afbe19274595801184e
humanhash: echo-whiskey-stairway-mars
File name:f5bea76ffac05afbe19274595801184e
Download: download sample
Signature Formbook
Create hunting rule
File size:285'325 bytes
First seen:2022-11-30 00:07:20 UTC
Last seen:2022-11-30 01:28:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ab6770b0a8635b9d92a5838920cfe770 (84 x Formbook, 30 x AgentTesla, 15 x Loki)
ssdeep 6144:QBn1RomeugRHbNAtHRgt/GVl9tSvOBFRQecwcwHa:gavFRy5Ot/OceFRbfHa
Threatray 7 similar samples on MalwareBazaar
TLSH T12554233734CA95BBD8674633C8B3A1E6D37FE2034422115B1BD50F66B6987C3C26299B
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
197
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Bank transfer order.xls
Verdict:
Malicious activity
Analysis date:
2022-11-29 09:59:44 UTC
Tags:
macros opendir exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/0df0849f-016c-4434-93c1-cfd7c5f882f8

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/339835/
Detection(s):
SecuriteInfo.com.FileRepMalware.29998.28842.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Reading critical registry keys
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63869ee4151dc20f68a7e7c3/reports/874c9131-99a0-419c-ae6f-7bb3f9dcbb94/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/bf3b5e40-570b-4955-a37c-d1eadae5eaab
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1123589
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 domain / URL
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 756313 Sample: qHpeBvr9cR.exe Startdate: 30/11/2022 Architecture: WINDOWS Score: 100 30 www.19t221013d.tokyo 2->30 46 Snort IDS alert for network traffic 2->46 48 Multi AV Scanner detection for domain / URL 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 5 other signatures 2->52 10 qHpeBvr9cR.exe 19 2->10         started        signatures3 process4 file5 28 C:\Users\user\AppData\...\febcldoukq.exe, PE32 10->28 dropped 13 febcldoukq.exe 10->13         started        process6 signatures7 66 Multi AV Scanner detection for dropped file 13->66 68 Machine Learning detection for dropped file 13->68 70 Maps a DLL or memory area into another process 13->70 16 febcldoukq.exe 13->16         started        process8 signatures9 38 Modifies the context of a thread in another process (thread injection) 16->38 40 Maps a DLL or memory area into another process 16->40 42 Sample uses process hollowing technique 16->42 44 Queues an APC in another process (thread injection) 16->44 19 explorer.exe 16->19 injected process10 dnsIp11 32 www.afterdarksocial.club 162.214.129.149, 49711, 49712, 80 UNIFIEDLAYER-AS-1US United States 19->32 34 eufidelizo.com 192.185.217.47, 49707, 80 UNIFIEDLAYER-AS-1US United States 19->34 36 4 other IPs or domains 19->36 54 System process connects to network (likely due to code injection or exploit) 19->54 56 Uses netsh to modify the Windows network and firewall settings 19->56 23 netsh.exe 13 19->23         started        26 autochk.exe 19->26         started        signatures12 process13 signatures14 58 Tries to steal Mail credentials (via file / registry access) 23->58 60 Tries to harvest and steal browser information (history, passwords, etc) 23->60 62 Modifies the context of a thread in another process (thread injection) 23->62 64 Maps a DLL or memory area into another process 23->64
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40dcfb704112265b383679baa3064cd7355bd02119b117f396e1b0283342362c/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-11-29 14:39:44 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=idopw4cbcitfwobwpg5kgbsm242vxubbdgyrp44w4gycqm2cgywa._file
Verdict:
unknown
Similar samples:
01cb657e996e468706f5c733853419678b8294e7f12669c98db23c1f0d0efc7a
Formbook
029d4fe47cb21a8f4e1dbe1863cf43cba6ac777e008b9675d381fda82986196b
Formbook
05cdda3567b913d99627f8e41336404d5830816df65e1001d6b2ad05bd9ed18d
Formbook
2c9d6d1a184ed20ff0667797fe4d182170716fb1b179488979bc33f79a901208
Formbook
7e65b9bc29dd5f4e96b4cb76b8742d5930315c2d04d66efb10a820ca823311e9
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:henz rat spyware stealer trojan
Link:
https://tria.ge/reports/221130-aewzvaba86/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook
Unpacked files
SH256 hash:
c853468560dadb636ac96612e91ab7d7a62cb5a1b9a21906868f7e6657f005e2
MD5 hash:
bed3720699800149b58d46b0b0c39c5e
SHA1 hash:
02cba2254571be9dac3fd2e3e1353da74af53963
Link:
https://www.unpac.me/results/c5ec66ab-8ade-424a-b305-c7dc3a004c4d/
SH256 hash:
40dcfb704112265b383679baa3064cd7355bd02119b117f396e1b0283342362c
MD5 hash:
f5bea76ffac05afbe19274595801184e
SHA1 hash:
93ef457bfcbc5f0860b1b7f6353ed6e9b0afd60e
Link:
https://www.unpac.me/results/c5ec66ab-8ade-424a-b305-c7dc3a004c4d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.23
Link:
https://yomi.yoroi.company/submissions/40dcfb704112265b383679baa3064cd7355bd02119b117f396e1b0283342362c

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 40dcfb704112265b383679baa3064cd7355bd02119b117f396e1b0283342362c

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/339835/
  
URLhaus
https://urlhaus.abuse.ch/url/2438470/

Comments


Avatar
zbet commented on 2022-11-30 00:07:22 UTC

url : hxxp://103.133.110.147/office365/vbc.exe