MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 961fefeda3155a237a5cb947701f9b2baaab58b4ed675098c7809984950803c7. 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: 17


Intelligence 17 IOCs YARA 7 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 961fefeda3155a237a5cb947701f9b2baaab58b4ed675098c7809984950803c7
SHA3-384 hash: ef75d9fd927514f3dc760d0d33666b784ed680cd8207261cf1e7f26be241c0df0bd330b5459005bf6bb6388ca03396f1
SHA1 hash: 2a5572b661eab051d4fd9f99e14341351ce9028f
MD5 hash: ea36e1f335ddc3b518fb817b92b2f7e9
humanhash: fillet-april-pip-alaska
File name:ea36e1f335ddc3b518fb817b92b2f7e9
Download: download sample
Signature Formbook
Create hunting rule
File size:295'480 bytes
First seen:2023-03-25 15:28:38 UTC
Last seen:2023-03-25 17:33:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:PYa6vM9nNG/+pJL0esyFnV2nnRh6/ORIURURBZ+aUjHOt+HN9YfeQjj2KQ:PYtMnNG/+XL8yxV2nRsWRIUdawRUeoQ
Threatray 2'579 similar samples on MalwareBazaar
TLSH T10454124A31B9E5FBF4730BB62E3816668BF9E51811262F2733501E38F9770C0964EB42
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 :
271
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Encomenda Fornecedor 255.xls
Verdict:
Malicious activity
Analysis date:
2023-03-24 10:36:11 UTC
Tags:
exploit cve-2017-11882 loader formbook trojan stealer
Link:
https://app.any.run/tasks/0071397c-5bec-4a4b-a6c3-68efdb6841e0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/377427/
Detection(s):
Sanesecurity.Malware.28885.BadCo.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Searching for synchronization primitives
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/74859/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo formbook nemesis overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/641f13418f3f4544f6cbff91/reports/800fee41-d21e-4634-8a50-68f3148f631d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/961fefeda3155a237a5cb947701f9b2baaab58b4ed675098c7809984950803c7
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/e37338c0-03b7-449e-8fe4-45108d2e96d7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1201900
Signature
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Performs DNS queries to domains with low reputation
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)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 834805 Sample: lEPWX5A4x7.exe Startdate: 25/03/2023 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 3 other signatures 2->41 9 lEPWX5A4x7.exe 19 2->9         started        process3 file4 27 C:\Users\user\AppData\Local\...\maduwvg.exe, PE32 9->27 dropped 12 maduwvg.exe 1 9->12         started        process5 signatures6 55 Multi AV Scanner detection for dropped file 12->55 57 Detected unpacking (changes PE section rights) 12->57 59 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->59 61 Maps a DLL or memory area into another process 12->61 15 maduwvg.exe 12->15         started        18 conhost.exe 12->18         started        process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 20 explorer.exe 1 15->20 injected process9 dnsIp10 29 un-object.com 192.185.17.12, 49715, 80 UNIFIEDLAYER-AS-1US United States 20->29 31 www.222ambking.org 91.195.240.94, 49702, 49703, 80 SEDO-ASDE Germany 20->31 33 13 other IPs or domains 20->33 43 System process connects to network (likely due to code injection or exploit) 20->43 45 Performs DNS queries to domains with low reputation 20->45 24 chkdsk.exe 13 20->24         started        signatures11 process12 signatures13 47 Tries to steal Mail credentials (via file / registry access) 24->47 49 Tries to harvest and steal browser information (history, passwords, etc) 24->49 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/961fefeda3155a237a5cb947701f9b2baaab58b4ed675098c7809984950803c7/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-03-24 17:27:13 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=syp673ndcvncg6s4xfdxah43fovkwwfu5vtvbgghqcmyjfiiapdq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0e83b40d751f735b6088f7c998ed7dd3321527adecf03ad156d91120adccd9eb
Formbook
3632e05e0742cd8f5d764ecaf243796aeb11ba5dfa858d4a2a2fae1d04734dcb
Formbook
987f477e626f57c4ba440be3016995b5b9d7365a422c0a1d9be524e4993def8a
Formbook
ab080c6c62ba54b560f3feb271626ae0fe1804834f51eeac008f576f4e1299a0
Formbook
aeb52b6f9b9f7b458048aa0eba6255840d1a90f4309f18c95acc0f3f4b972df3
Formbook
d341b6fe8642df50756dfc1fd18bf37e605718a7b6c2944d117b3a8bf13b4650
Formbook
ebce15ad53b98d7aba7f7544ee947e88f58d696e22ca4bc5d15b2ded37b577ac
Formbook
+ 2'569 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230325-swwphsfd6t/
Behaviour
Gathers network information
Modifies Internet Explorer settings
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
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
78a2b4466fbc186b8de6423771ab90dffa1566a2135ca9741d94526387570f15
MD5 hash:
26e7995333278eda4c3a54e570d09ba4
SHA1 hash:
5967ffee8562982633e3d4a9f8696853b298a1d0
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/159033a0-0e8b-452f-8b2d-1a84da8dddc8/
Parent samples :
e62c1e809c48e66104c34ae3e977b82fbea2e984dee708bda431b608c2774c28
052b6162527da70a384bfa5712e60c065c4d449cc70b6619ec2a50c0a92e2493
1a5f6d761050ca929b99fc66e7c4b57f321421a7372dc752d8000e79bb920ca0
dc2f8a85b52e8562ada16c2ee6cda9770a3c010f894901844d0104476bae67b3
987f477e626f57c4ba440be3016995b5b9d7365a422c0a1d9be524e4993def8a
2333130311b7b060f360196c5629af0ca1919366d2de939c067e0396602d0acb
961fefeda3155a237a5cb947701f9b2baaab58b4ed675098c7809984950803c7
0b4d4ab86573d05f38f7d2fe83635c75da4462eacadd1859f00bdbdc3809f6fe
49c63fe83f7e41b112637d582cd180214acf60babf4cdd13a2629f9de3874fec
3ab1320757d68dbf0e5eb5d31cf81247952c244bbfbda9466cd83d112efc2c72
d546617fa87ea382d7d36b61fa9a69e447bcc69f9bb366f52f3c1df3ebf9254f
039e36a97d5fbc019edd6f7a69d2f89bc8ba24c73c08268831274fe58fa7dbfa
426c06ac810480970dbbd6cbfa2a6e9880ff50b35fd4576986400acce4af949f
00d3d0c49343dba533737e4a17cf453697aa569b00d07deb2cd7688c66d88ada
fe769c40bdc4ba83422c97df176374bb3846f4cc941ecbbfb47383321dfabdca
7517367b3b61170bb7637de6f89077069159c4a04f430c28102e2d7cf5a0343a
89fd567270112eb3494cd4253f2babe024465e60fb28c64800901ccdb3d7fdd2
2f06963075874a8b1b409c7d9fb443c4fffe7d8936936d49f00c0c5d1b71590c
SH256 hash:
e36372186eecde198f00b7f8c03de639d3c140c72fb92125aac96a916c6d80fb
MD5 hash:
dda34f0fa94e644b7a5d668cc280e7a3
SHA1 hash:
6ea3c9d56032544c49bbe677abadc2d7bea801b1
Link:
https://www.unpac.me/results/159033a0-0e8b-452f-8b2d-1a84da8dddc8/
SH256 hash:
58af24bbcfb5c5ffe94640ccbb2c1f4c22ff3fcafe4170bd672497564adc700f
MD5 hash:
e4414c98857e824d4181c102aa5b7164
SHA1 hash:
6487cf6df5f38028194cffb032ebc0996c8457e0
Link:
https://www.unpac.me/results/159033a0-0e8b-452f-8b2d-1a84da8dddc8/
SH256 hash:
961fefeda3155a237a5cb947701f9b2baaab58b4ed675098c7809984950803c7
MD5 hash:
ea36e1f335ddc3b518fb817b92b2f7e9
SHA1 hash:
2a5572b661eab051d4fd9f99e14341351ce9028f
Link:
https://www.unpac.me/results/159033a0-0e8b-452f-8b2d-1a84da8dddc8/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/961fefeda315/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/961fefeda3155a237a5cb947701f9b2baaab58b4ed675098c7809984950803c7

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Web download

Formbook

Executable exe 961fefeda3155a237a5cb947701f9b2baaab58b4ed675098c7809984950803c7

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2585423/
Cape
Cape
https://www.capesandbox.com/analysis/377427/

Comments


Avatar
zbet commented on 2023-03-25 15:28:40 UTC

url : hxxp://103.189.202.84/R1519F/vbc.exe