MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12c1f48673e38233f91d74753162a49909d0e6af2f1410438580cf254273a683. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 12c1f48673e38233f91d74753162a49909d0e6af2f1410438580cf254273a683
SHA3-384 hash: 336df6bbdbbb6fd1eb2c9be36588a091faf1a2340e8df12a06bd98a6f400b9a4058c7f06ad922d61efa884b7d04f5133
SHA1 hash: 7033dceebfac006176e0a96de2454d3a64b9fdb8
MD5 hash: 1f4795e3a6a434601ec37a38ffc99ff5
humanhash: magnesium-minnesota-wisconsin-xray
File name:file
Download: download sample
Signature Formbook
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File size:795'648 bytes
First seen:2023-10-05 15:58:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:jb/6dUcSlJZJxOtk1bpM5E66p9JfSwK3ZJf/AHPFoNgtJXfZRhmFOCP/rtFGg7K:jb/BlJrwk1bpYx6pDKK9HhwOCP/fGg7
TLSH T10705B503BE4B86FAF64D1736D69B1C04DB68D983732BD71AF88F235619133AA9C0550B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon f8a48686aeb6f3e0 (4 x Formbook, 2 x RemcosRAT, 1 x AgentTesla)
Reporter jstrosch
Tags:.NET exe FormBook MSIL

Intelligence

File Origin
# of uploads :
1
# of downloads :
307
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
New Revised Order.xls
Verdict:
Malicious activity
Analysis date:
2023-10-05 14:21:49 UTC
Tags:
opendir exploit cve-2017-11882 loader formbook xloader stealer spyware
Link:
https://app.any.run/tasks/1e049a02-fec3-41e1-9e3a-f79d587ad43a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.DropperX-gen.5243.8890.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Gathering data
Verdict:
Malicious
Labled as:
Ser.MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/12c1f48673e38233f91d74753162a49909d0e6af2f1410438580cf254273a683
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:
Unknown
Link:
https://analyze.intezer.com/analyses/fd762541-8737-408a-911a-aede409840e7
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1320417
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1320417 Sample: file.exe Startdate: 05/10/2023 Architecture: WINDOWS Score: 100 30 xxkxcfkujyeft.xyz 2->30 32 www.xxkxcfkujyeft.xyz 2->32 34 13 other IPs or domains 2->34 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 7 other signatures 2->50 10 file.exe 15 2 2->10         started        signatures3 process4 dnsIp5 42 23.95.106.3, 49691, 49692, 80 AS-COLOCROSSINGUS United States 10->42 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->62 64 Injects a PE file into a foreign processes 10->64 14 file.exe 10->14         started        signatures6 process7 signatures8 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 17 NdzbXJlBPgDQwfkWVlZuPP.exe 14->17 injected process9 process10 19 mstsc.exe 13 17->19         started        signatures11 52 Tries to steal Mail credentials (via file / registry access) 19->52 54 Tries to harvest and steal browser information (history, passwords, etc) 19->54 56 Writes to foreign memory regions 19->56 58 3 other signatures 19->58 22 explorer.exe 6 1 19->22 injected 26 NdzbXJlBPgDQwfkWVlZuPP.exe 19->26 injected 28 firefox.exe 19->28         started        process12 dnsIp13 36 www.frefire.top 67.223.117.37, 49718, 49719, 49720 VIMRO-AS15189US United States 22->36 38 www.flyingfoxnb.com 216.40.34.41, 49722, 49723, 49724 TUCOWSCA Canada 22->38 40 8 other IPs or domains 22->40 60 System process connects to network (likely due to code injection or exploit) 22->60 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/12c1f48673e38233f91d74753162a49909d0e6af2f1410438580cf254273a683/
Threat name:
ByteCode-MSIL.Trojan.Znyonm
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Status:
Malicious
First seen:
2023-10-05 13:13:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cla7jbtt4obdh6i5or2tcyvetee5bzvpf4kbaq4fqdhskqttu2bq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/231005-tegppseb86/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Downloads MZ/PE file
Unpacked files
SH256 hash:
12c1f48673e38233f91d74753162a49909d0e6af2f1410438580cf254273a683
MD5 hash:
1f4795e3a6a434601ec37a38ffc99ff5
SHA1 hash:
7033dceebfac006176e0a96de2454d3a64b9fdb8
Link:
https://www.unpac.me/results/f3ea92ed-d205-4d40-b672-73965c9c6991/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/12c1f48673e3/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/12c1f48673e38233f91d74753162a49909d0e6af2f1410438580cf254273a683

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 12c1f48673e38233f91d74753162a49909d0e6af2f1410438580cf254273a683

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2717607/

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