MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23581aadb0b15a41f3e5d8e7cf7abe496795f3926703699962c37aa74a125bf3. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23581aadb0b15a41f3e5d8e7cf7abe496795f3926703699962c37aa74a125bf3
SHA3-384 hash: 40c92fe103b3d2c9e97439120badcc5e58c625cd9eae54cb5ab4a9003b32a6e74a9ff822c831933333d2a1c3e4f3e869
SHA1 hash: 92991171d9d4cd47f4bd4a7158b1fc280adf9429
MD5 hash: 57e6d8c2eb8585c0250814c8a8be2b9b
humanhash: summer-johnny-april-mirror
File name:57e6d8c2eb8585c0250814c8a8be2b9b
Download: download sample
Signature Formbook
Create hunting rule
File size:219'417 bytes
First seen:2022-05-19 07:27:05 UTC
Last seen:2022-05-19 08:46:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:ZYa6Vdi50ACKB7j9/jPR7JhgZihQ5HbFwXY/U7nY:ZYD462dj9rPR7gZmQpao87Y
TLSH T1A624120852F4C4B7C9F217B02D3A966AAF7E94154970538F23B65E1C7A36242DE0FB93
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.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 :
283
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Order No.38810.xlsx
Verdict:
Malicious activity
Analysis date:
2022-05-19 05:38:38 UTC
Tags:
trojan exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/ed1c16a8-3717-472f-91fb-4e77bfd2a552

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/272379/
Detection(s):
SecuriteInfo.com.Trojan.Siggen17.52776.25962.3278.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
Searching for the window
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe lokibot overlay packed shell32.dll winlock
Link:
https://www.filescan.io/uploads/6285f183ff102f271238ac77/reports/da84b0e9-2748-49cb-9a48-1000da5d2736/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:
Malicious
Link:
https://analyze.intezer.com/analyses/c1a7a05c-8494-4fad-9bd3-618592d7b570
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/997451
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 629945 Sample: NEBqtmEFAE Startdate: 19/05/2022 Architecture: WINDOWS Score: 96 19 Multi AV Scanner detection for domain / URL 2->19 21 Found malware configuration 2->21 23 Malicious sample detected (through community Yara rule) 2->23 25 4 other signatures 2->25 7 NEBqtmEFAE.exe 19 2->7         started        process3 file4 17 C:\Users\user\AppData\Local\Temp\lznqtd.exe, PE32 7->17 dropped 10 lznqtd.exe 1 7->10         started        process5 signatures6 27 Multi AV Scanner detection for dropped file 10->27 13 conhost.exe 10->13         started        15 lznqtd.exe 10->15         started        process7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23581aadb0b15a41f3e5d8e7cf7abe496795f3926703699962c37aa74a125bf3/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2022-05-18 15:44:18 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=enmbvlnqwfned47f3dt466v6jftzl44sm4bwtglcyn5kosqslpzq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:nk6l rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220519-janbksfdap/
Behaviour
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
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
6291bc99b365c650d327721918c935edcea1b9b63b6e396cb2cc94707da2a73b
MD5 hash:
910b9926c0cbe5f83d38fa6474e122b8
SHA1 hash:
01c777d8eca7d8cd0ae435f2096ae0df846d676b
Link:
https://www.unpac.me/results/e35066e9-37ba-4eb8-b719-2b59739ae704/
SH256 hash:
e24ffd2ae582c20b1b6155377f5b31cc7eba94f214fecbdeffa3d5b5c42f63fe
MD5 hash:
46e5cfa195b87ce2d352b9985bc03fe8
SHA1 hash:
4e058350d01b3445f41cf671603a6b507d2b6dd5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e35066e9-37ba-4eb8-b719-2b59739ae704/
Parent samples :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 hash:
23581aadb0b15a41f3e5d8e7cf7abe496795f3926703699962c37aa74a125bf3
MD5 hash:
57e6d8c2eb8585c0250814c8a8be2b9b
SHA1 hash:
92991171d9d4cd47f4bd4a7158b1fc280adf9429
Link:
https://www.unpac.me/results/e35066e9-37ba-4eb8-b719-2b59739ae704/
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/23581aadb0b15a41f3e5d8e7cf7abe496795f3926703699962c37aa74a125bf3

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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 23581aadb0b15a41f3e5d8e7cf7abe496795f3926703699962c37aa74a125bf3

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2201796/
Cape
Cape
https://www.capesandbox.com/analysis/272379/

Comments


Avatar
zbet commented on 2022-05-19 07:27:20 UTC

url : hxxp://lutanedukasi.co.id/wp-includes/koboko.exe