MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 603ba5f713b581fa7fba6e38e89f3df31060d09a0abee870e1a914bd31015923. 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: 603ba5f713b581fa7fba6e38e89f3df31060d09a0abee870e1a914bd31015923
SHA3-384 hash: 036d8c045c5ea2eac58b044f6bb78451df5967dc1987cd6062f6742214f1639e782acb61c967ece1e9d2b34bd2d3de1a
SHA1 hash: b8522c08667ad5aa77b3001ffbf8f008931d8ac9
MD5 hash: 377a3e9e4992dc551a474c423cec223d
humanhash: steak-colorado-black-papa
File name:rfq_items_order_purchase_quotation_27012023000000000000_PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:278'198 bytes
First seen:2023-01-27 12:29:50 UTC
Last seen:2023-01-27 15:36:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:vYa6+XTHb03KnWSDQRNi0tDngpeZdrF8ucNVDRh+1Hj:vYQXjo3KW6QRU0trgoZdpDcg
TLSH T1A344131D39DAC0E6ECB187B24E7613A16EB28A35057093172FB06B5DBB61B40D94D3E3
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
188
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
rfq_items_order_purchase_quotation_27012023000000000000_PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-01-27 12:30:40 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/43c2a5ed-c73f-4ce7-a2d8-93b8a422dcda

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/357381/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Sending a custom TCP request
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
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/63412/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63d3c3cd696b2d972574a222/reports/631a7069-9ce4-43a1-a333-6e9a372cb886/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/21763a50-07f9-480b-b6e3-3a6eb38d233f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1160189
Signature
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Initial sample is a PE file and has a suspicious name
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 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 dnsIp2 2 Behavior Graph ID: 792926 Sample: rfq_items_order_purchase_qu... Startdate: 27/01/2023 Architecture: WINDOWS Score: 100 28 www.123hearingaids.com 2->28 30 parkingpage.namecheap.com 2->30 46 Snort IDS alert for network traffic 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 4 other signatures 2->52 10 rfq_items_order_purchase_quotation_27012023000000000000_PDF.exe 19 2->10         started        signatures3 process4 file5 26 C:\Users\user\AppData\Local\...\kcutcvew.exe, PE32 10->26 dropped 13 kcutcvew.exe 10->13         started        process6 signatures7 66 Detected unpacking (changes PE section rights) 13->66 68 Maps a DLL or memory area into another process 13->68 16 kcutcvew.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 1 16->19 injected process10 dnsIp11 32 www.carrconsulting.xyz 198.50.252.64, 49710, 49711, 80 OVHFR Canada 19->32 34 www.ivens-consulting.online 217.160.0.131, 49702, 49703, 80 ONEANDONE-ASBrauerstrasse48DE Germany 19->34 36 14 other IPs or domains 19->36 54 System process connects to network (likely due to code injection or exploit) 19->54 56 Performs DNS queries to domains with low reputation 19->56 23 control.exe 13 19->23         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/603ba5f713b581fa7fba6e38e89f3df31060d09a0abee870e1a914bd31015923/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-01-27 10:29:37 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ma52l5ytwwa7u752ny4orhz56migbue2bk7oq4hbvekl2miblerq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/230127-ppgegabh4w/
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
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
efeb93bc6f287aeecacbc780e68a89dacbfdd7ba5e53571c75ac2bd2a8927a98
MD5 hash:
1fcb7207facee6b03a870bdc84c22085
SHA1 hash:
9cd567fd723f4cefada3c79a485a94730d759aa9
Link:
https://www.unpac.me/results/6cb17c05-3d93-4842-b1cb-27902241edc4/
SH256 hash:
9677f29e22eddccbce7cded453a4069a65d7be91c03cf2257c2741387a0c5766
MD5 hash:
e8389df45edbb878e4e839c4509b04d7
SHA1 hash:
731ef1b14a610eb036f50a4a55ccde5dbd8adcfe
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/6cb17c05-3d93-4842-b1cb-27902241edc4/
Parent samples :
603ba5f713b581fa7fba6e38e89f3df31060d09a0abee870e1a914bd31015923
5255fd7c0d9904892ed2a92ff1d08e73d59012e206c52a6865a6f6cd5f081479
SH256 hash:
2f80ecaaa874c4fdb2f4b9c38963a385b32dfe9f72de59fc25f14ea25a572e32
MD5 hash:
f1e90d73ff7e949dbf2d8845866a92c9
SHA1 hash:
cdf36e534322576ba2f52df922ea05ce67c450f0
Link:
https://www.unpac.me/results/6cb17c05-3d93-4842-b1cb-27902241edc4/
SH256 hash:
603ba5f713b581fa7fba6e38e89f3df31060d09a0abee870e1a914bd31015923
MD5 hash:
377a3e9e4992dc551a474c423cec223d
SHA1 hash:
b8522c08667ad5aa77b3001ffbf8f008931d8ac9
Link:
https://www.unpac.me/results/6cb17c05-3d93-4842-b1cb-27902241edc4/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/603ba5f713b5/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/603ba5f713b581fa7fba6e38e89f3df31060d09a0abee870e1a914bd31015923

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 603ba5f713b581fa7fba6e38e89f3df31060d09a0abee870e1a914bd31015923

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/357381/

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