MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99c70511abddfe39ccaea3fd4cafb9bc382ebdf0bd8b9a9c8f18a178ef63e664. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99c70511abddfe39ccaea3fd4cafb9bc382ebdf0bd8b9a9c8f18a178ef63e664
SHA3-384 hash: 53b27e448cd49c0f2e9ac74dca6e4af868db5f53736a94a85371f2fbc4fccd5490e568ee420300f62e4375056490071f
SHA1 hash: 0421241590e85664079db052bf77b79f05a0b8e6
MD5 hash: 92a24824d555bc8f4a947992d85027b0
humanhash: xray-ten-johnny-equal
File name:92a24824d555bc8f4a947992d85027b0
Download: download sample
Signature Formbook
Create hunting rule
File size:266'359 bytes
First seen:2023-03-30 04:34:54 UTC
Last seen:2023-03-30 09:59:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:/Ya6skJA1+YTMYeHfXSuyDk7GgF4WsgI3NfTOIfCx:/YSQA1+0MlfizAC+sH9fTOkC
TLSH T1D9441245AAF5C9B7DAEB56312B3B17797EE4AC225275C60F13101B0C78B27A1D60E332
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 :
297
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
92a24824d555bc8f4a947992d85027b0
Verdict:
Malicious activity
Analysis date:
2023-03-30 04:37:56 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/1db7aa3c-9bb1-4a31-9d2a-4237d6516619

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/378652/
Detection(s):
Sanesecurity.Malware.28947.BadP.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
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/75688/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo formbook nemesis overlay packed remcos shell32.dll zusy
Link:
https://www.filescan.io/uploads/64251178688c0e6397b39e45/reports/79b99412-3c3e-4eb3-895c-396942e85e92/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/99c70511abddfe39ccaea3fd4cafb9bc382ebdf0bd8b9a9c8f18a178ef63e664
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/5df42cf2-a7c8-4d15-bb78-1133303b4cbb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1204836
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
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: 837752 Sample: qrEUA63OAY.exe Startdate: 30/03/2023 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 qrEUA63OAY.exe 19 2->9         started        process3 file4 27 C:\Users\user\AppData\Local\...\dtpsqsds.exe, PE32 9->27 dropped 12 dtpsqsds.exe 9->12         started        process5 signatures6 55 Antivirus detection for dropped file 12->55 57 Multi AV Scanner detection for dropped file 12->57 59 Detected unpacking (changes PE section rights) 12->59 61 Maps a DLL or memory area into another process 12->61 15 dtpsqsds.exe 12->15         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 18 explorer.exe 5 6 15->18 injected process9 dnsIp10 29 www.222ambking.org 91.195.240.94, 49704, 49705, 49706 SEDO-ASDE Germany 18->29 31 www.younrock.com 81.17.29.146, 49710, 49711, 49712 PLI-ASCH Switzerland 18->31 33 10 other IPs or domains 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 45 Performs DNS queries to domains with low reputation 18->45 22 cmmon32.exe 13 18->22         started        25 autofmt.exe 18->25         started        signatures11 process12 signatures13 47 Tries to steal Mail credentials (via file / registry access) 22->47 49 Tries to harvest and steal browser information (history, passwords, etc) 22->49 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99c70511abddfe39ccaea3fd4cafb9bc382ebdf0bd8b9a9c8f18a178ef63e664/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2023-03-30 00:24:46 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=thdqkenl3x7dttfoup6uzl5zxq4c5ppqxwfzvhepdcqxr33d4zsa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230330-e7nldsba22/
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:
a8f1f0db1c1c108260508e045bafbbf0060ce0a789c8b243ad026239614d9655
MD5 hash:
c32799742baaec4464a7e2529df79ae3
SHA1 hash:
4710a3af283c8da6187d0c77eddda87080bfaf6a
Link:
https://www.unpac.me/results/b62715ef-7f0e-42d7-8ba0-fcc5f63f2e28/
SH256 hash:
99c70511abddfe39ccaea3fd4cafb9bc382ebdf0bd8b9a9c8f18a178ef63e664
MD5 hash:
92a24824d555bc8f4a947992d85027b0
SHA1 hash:
0421241590e85664079db052bf77b79f05a0b8e6
Link:
https://www.unpac.me/results/b62715ef-7f0e-42d7-8ba0-fcc5f63f2e28/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/99c70511abdd/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/99c70511abddfe39ccaea3fd4cafb9bc382ebdf0bd8b9a9c8f18a178ef63e664

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 99c70511abddfe39ccaea3fd4cafb9bc382ebdf0bd8b9a9c8f18a178ef63e664

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/378652/
  
URLhaus
https://urlhaus.abuse.ch/url/2590846/

Comments


Avatar
zbet commented on 2023-03-30 04:34:59 UTC

url : hxxp://103.189.202.84/7770102/vbc.exe