MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87a8083bd4da6ab8f6b07927cd49581787ca70cdd9c2dee67de03682b3aa647d. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments
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SHA256 hash: 87a8083bd4da6ab8f6b07927cd49581787ca70cdd9c2dee67de03682b3aa647d
SHA3-384 hash: 4365cf02645003fae7647ae8c39865bd7316f2e55920dfdbd6910cb77b311e647c486cb2376f81168838ff737e66e10e
SHA1 hash: 9c898280b0af3f9add6fe375e5c69d6f25bd7b26
MD5 hash: 8c2fafe332a32da1b8d00c5cc8dceb79
humanhash: saturn-stairway-stairway-cold
File name:8090 4245.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:488'050 bytes
First seen:2023-01-20 10:18:26 UTC
Last seen:2023-01-20 13:59:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:QYc1J11nbXExwOGiGkfmmmPAYTzW0MH0Y8xrsadX1GVHLP2r:QYNwOxAXtI0ts2IVHLur
TLSH T100A4D0E47A41C467DC3F8EF5C25BE73409EA1AE2BDC60ACB12E0611F163558AF90E536
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 d0bc3e3e369acce0 (1 x Formbook)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
187
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
8090 4245.exe
Verdict:
Malicious activity
Analysis date:
2023-01-20 10:19:39 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/2f736e9f-e309-4c28-a4f8-43fc025284fb

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/354898/
Detection(s):
SecuriteInfo.com.Variant.Babar.142505.24741.17154.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
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Searching for the window
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/61718/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook nemesis overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63ca6a96416d38777a79d40e/reports/68595e21-12dc-4126-a503-dbf54261d91d/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/8a13e8c2-eaac-468e-8e3b-152c1e1181df
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1155236
Signature
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
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 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: 787968 Sample: 8090 4245.exe Startdate: 20/01/2023 Architecture: WINDOWS Score: 100 61 Snort IDS alert for network traffic 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Antivirus detection for URL or domain 2->65 67 2 other signatures 2->67 10 8090 4245.exe 19 2->10         started        process3 file4 43 C:\Users\user\AppData\Local\...\xitghwc.exe, PE32 10->43 dropped 13 xitghwc.exe 1 3 10->13         started        process5 file6 45 C:\Users\user\AppData\Roaming\...\mucp.exe, PE32 13->45 dropped 81 Detected unpacking (changes PE section rights) 13->81 83 Maps a DLL or memory area into another process 13->83 85 Contains functionality to detect sleep reduction / modifications 13->85 17 xitghwc.exe 13->17         started        20 conhost.exe 13->20         started        signatures7 process8 signatures9 53 Modifies the context of a thread in another process (thread injection) 17->53 55 Maps a DLL or memory area into another process 17->55 57 Sample uses process hollowing technique 17->57 59 Queues an APC in another process (thread injection) 17->59 22 explorer.exe 10 10 17->22 injected process10 dnsIp11 47 www.accordvent.xyz 199.192.31.98, 49696, 49697, 80 NAMECHEAP-NETUS United States 22->47 49 capertidai.shop 198.252.105.99, 49686, 80 HAWKHOSTCA Canada 22->49 51 8 other IPs or domains 22->51 69 System process connects to network (likely due to code injection or exploit) 22->69 71 Performs DNS queries to domains with low reputation 22->71 26 colorcpl.exe 13 22->26         started        29 mucp.exe 1 22->29         started        31 mucp.exe 1 22->31         started        33 2 other processes 22->33 signatures12 process13 signatures14 73 Tries to steal Mail credentials (via file / registry access) 26->73 75 Tries to harvest and steal browser information (history, passwords, etc) 26->75 77 Modifies the context of a thread in another process (thread injection) 26->77 79 Maps a DLL or memory area into another process 26->79 35 WerFault.exe 10 29->35         started        37 conhost.exe 29->37         started        39 WerFault.exe 10 31->39         started        41 conhost.exe 31->41         started        process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/87a8083bd4da6ab8f6b07927cd49581787ca70cdd9c2dee67de03682b3aa647d/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-01-20 04:04:42 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=q6uaqo6u3jvlr5vqpet42skyc6d4u4gn3hbn5zt54a3ifm5kmr6q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/230120-mchewsad97/
Behaviour
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
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
1d0e61e3f113920845ee823a91fddad2e37c3053b9c8f9767d7fe5df31fa329d
MD5 hash:
a224edcc925f354666447250ef040b5c
SHA1 hash:
8c700a52bec5e7cf1e9f44f34a2ee9df7997ed52
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/3ff0039a-1d5b-4f46-bf82-94456dead2ae/
Parent samples :
a58a5f2c0f0ffae962702357f07665dbf49adc4c376aae50de4ce02745f3b06a
87a8083bd4da6ab8f6b07927cd49581787ca70cdd9c2dee67de03682b3aa647d
5d40ae41d37143ffb8be9ec1d85563e3cd3b7def268abc33453b926d70a1aee7
428aee241022499cbd49907635162f116e24792b117490949fa3527dc130b90f
SH256 hash:
bfd905897f0b63697091a9fa40d2a4c9b54b4052e02d3d473654d039803eae37
MD5 hash:
e0b5bb5129ad64d7bd988bac56ac0113
SHA1 hash:
9e3ef2a1828d552d8b692e6fc58a04d66f453fe2
Link:
https://www.unpac.me/results/3ff0039a-1d5b-4f46-bf82-94456dead2ae/
SH256 hash:
0c9873f6136102f8f916f4c94633fc21b128496a237696be8405fe3f2a953acd
MD5 hash:
f1b10b0a27c65790267322388476216c
SHA1 hash:
b59d4302dfbdb1f25049e56259b76ff5965360cb
Link:
https://www.unpac.me/results/3ff0039a-1d5b-4f46-bf82-94456dead2ae/
SH256 hash:
87a8083bd4da6ab8f6b07927cd49581787ca70cdd9c2dee67de03682b3aa647d
MD5 hash:
8c2fafe332a32da1b8d00c5cc8dceb79
SHA1 hash:
9c898280b0af3f9add6fe375e5c69d6f25bd7b26
Link:
https://www.unpac.me/results/3ff0039a-1d5b-4f46-bf82-94456dead2ae/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/87a8083bd4da/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/87a8083bd4da6ab8f6b07927cd49581787ca70cdd9c2dee67de03682b3aa647d

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:azov_Dropped
Create hunting rule
Author:Potatech
Description:Azov Detection
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.

File information

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

Malspam

Formbook

Executable exe 87a8083bd4da6ab8f6b07927cd49581787ca70cdd9c2dee67de03682b3aa647d

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/354898/

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