MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81b7ee55b75f60bbf42484de670154d6a7c182bdfe1181e3a89bb4483dfd6944. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81b7ee55b75f60bbf42484de670154d6a7c182bdfe1181e3a89bb4483dfd6944
SHA3-384 hash: cf839e8e268a4b8b050e6269b2d84601260a47ebd005fb0b1599afc1626a985e569e7cbb6610bc43bee93f81dcd08b3e
SHA1 hash: 6839ee1960631c24f06b927c8f6fb3cbc6a2aa04
MD5 hash: 6682d9d38bbff318f65c39100534f32f
humanhash: sad-jupiter-steak-carpet
File name:rORDERINQUIRY_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:255'260 bytes
First seen:2023-03-08 12:43:44 UTC
Last seen:2023-03-08 14:31:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:/Ya6E8tKKmuHztTgpoMoz6cGpyRlNsjz2peSrheXzaW:/YK8jBJiMpGpyNpeSNeeW
TLSH T1564412043EF0C94BD9B247721DBA0717EEE564061495CB5B23A02B9DBA391A1DC0FFE6
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 FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
rORDERINQUIRY_pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-03-08 12:46:53 UTC
Tags:
stealer formbook trojan
Link:
https://app.any.run/tasks/6c2e7048-eccb-419d-9d21-5d372fed0dc5

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/372570/
Detection(s):
SecuriteInfo.com.Trojan.Garf.Gen.7.6777.8961.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
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64088317f1a68c396b2daec0/reports/ab7f0d4b-f4a0-4d2b-9ecc-15dfe5084a34/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/81b7ee55b75f60bbf42484de670154d6a7c182bdfe1181e3a89bb4483dfd6944
Result
Verdict:
MALICIOUS
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0eef6500-8ea3-45fa-9f91-e5e824351866
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1189762
Signature
Antivirus detection for dropped file
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 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 netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 822636 Sample: rORDERINQUIRY_pdf.exe Startdate: 08/03/2023 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 3 other signatures 2->39 9 rORDERINQUIRY_pdf.exe 19 2->9         started        process3 file4 25 C:\Users\user\AppData\Local\...\hideggu.exe, PE32 9->25 dropped 12 hideggu.exe 9->12         started        process5 signatures6 53 Antivirus detection for dropped file 12->53 55 Multi AV Scanner detection for dropped file 12->55 57 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->57 59 Maps a DLL or memory area into another process 12->59 15 hideggu.exe 12->15         started        process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 4 6 15->18 injected process9 dnsIp10 27 www.berlinhealthweek.com 130.185.109.77, 49746, 49747, 49749 XIRRADE Germany 18->27 29 www.shantyman.org 104.143.9.111, 49736, 49737, 49738 VIVIDHOSTINGUS United States 18->29 31 6 other IPs or domains 18->31 41 System process connects to network (likely due to code injection or exploit) 18->41 43 Uses netstat to query active network connections and open ports 18->43 22 NETSTAT.EXE 13 18->22         started        signatures11 process12 signatures13 45 Tries to steal Mail credentials (via file / registry access) 22->45 47 Tries to harvest and steal browser information (history, passwords, etc) 22->47 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81b7ee55b75f60bbf42484de670154d6a7c182bdfe1181e3a89bb4483dfd6944/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2023-03-08 01:07:54 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qg364vnxl5qlx5beqtpgoaku22t4dav57yiydy5ito2eqpp5nfca._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230308-pygrlaaa79/
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
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
698d2c8c2b9e18572fd205aaae89418c1136499adafebba1677962a3a65a3034
MD5 hash:
1f99393509c5b967ed795ed0dfac2964
SHA1 hash:
78c1e20274f5ee0a4be519068e7b6679e214c91c
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/ac4f8d39-e454-4bb6-b202-74fd3b591bb0/
Parent samples :
81b7ee55b75f60bbf42484de670154d6a7c182bdfe1181e3a89bb4483dfd6944
ea03e5c704ec3460109c1692f1561f684a91af6883b893868ab63e0b351bb165
cfde159d786c4ef0c922eba07b850ef02811fdddaeea06ae548d516815a34c7f
SH256 hash:
593a2140d6751b78ee732b93c5a85e260efe2103c3785a643724892ca55e67bf
MD5 hash:
7ebdf4e5c8bf41c3065ab6ce2a08c1ee
SHA1 hash:
62ef8132d1aed23a874b484dbcede265ce25e595
Link:
https://www.unpac.me/results/ac4f8d39-e454-4bb6-b202-74fd3b591bb0/
SH256 hash:
b7bd0f6e737e281c3f9aebfc16d20911fd5bc7aa8d3febfccfedfda8dcbe0aba
MD5 hash:
cb776f77add469dba201d11fc9560ea6
SHA1 hash:
2d966017ffed19d4e79f8147d067ddd075fec9a6
Link:
https://www.unpac.me/results/ac4f8d39-e454-4bb6-b202-74fd3b591bb0/
SH256 hash:
81b7ee55b75f60bbf42484de670154d6a7c182bdfe1181e3a89bb4483dfd6944
MD5 hash:
6682d9d38bbff318f65c39100534f32f
SHA1 hash:
6839ee1960631c24f06b927c8f6fb3cbc6a2aa04
Link:
https://www.unpac.me/results/ac4f8d39-e454-4bb6-b202-74fd3b591bb0/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/81b7ee55b75f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/81b7ee55b75f60bbf42484de670154d6a7c182bdfe1181e3a89bb4483dfd6944

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.

Malspam

Formbook

Executable exe 81b7ee55b75f60bbf42484de670154d6a7c182bdfe1181e3a89bb4483dfd6944

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/372570/

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