MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6d3397c687aea5017b90a5e96adc6fbfb0429d56a8b2ead1f1d4273994952379. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6d3397c687aea5017b90a5e96adc6fbfb0429d56a8b2ead1f1d4273994952379
SHA3-384 hash: f52bfc7ee3d5d4b80f5ac264ac5907459824c3dbedbabe35f5093a2c77288bc155271c249f1b43af9815654735859aaa
SHA1 hash: 4bd8e67e468adfbfddd9e5a1e47fdf318bf9a31b
MD5 hash: 6f53598b9c19b30a0cf3ff0432301708
humanhash: mango-september-blue-hydrogen
File name:6f53598b9c19b30a0cf3ff0432301708.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:74'240 bytes
First seen:2022-11-03 08:49:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:7BKK5PX8Q01Hb20oJ0fekpamVGfhCW7j:lKSx0177ouekpamVGfhCW7j
Threatray 3'527 similar samples on MalwareBazaar
TLSH T1E573EC8D766071DFC85BC872CEA82C68EA64747B531BD203A45326AD9E0D99BCF150F3
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 30b2c4c8c8c4b030 (53 x Formbook, 41 x RemcosRAT, 20 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
211
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
6f53598b9c19b30a0cf3ff0432301708.exe
Verdict:
Malicious activity
Analysis date:
2022-11-03 08:52:39 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/0e6f2759-b9d3-43e6-908d-6b0730c15c32

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/327803/
Detection(s):
Win.Dropper.LokiBot-9969312-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Launching a process
Creating a file
Sending a custom TCP request
Searching for synchronization primitives
Launching the process to change network settings
Launching cmd.exe command interpreter
Setting browser functions hooks
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/636380bffe481257b8fc05de/reports/f0c94346-dbd9-4c59-8841-afbdc0117f58/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/de11e5e5-b84e-4239-8c82-bff81b38b1d9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1104297
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
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 detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 736964 Sample: U8RYIwIvfK.exe Startdate: 03/11/2022 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Multi AV Scanner detection for domain / URL 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 8 other signatures 2->47 10 U8RYIwIvfK.exe 15 3 2->10         started        process3 dnsIp4 39 tgc8x.tk 50.115.174.192, 443, 49701, 49704 VIRPUS United States 10->39 33 C:\Users\user\AppData\...\U8RYIwIvfK.exe.log, CSV 10->33 dropped 57 Writes to foreign memory regions 10->57 59 Allocates memory in foreign processes 10->59 61 Injects a PE file into a foreign processes 10->61 63 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 10->63 15 aspnet_compiler.exe 10->15         started        18 aspnet_compiler.exe 10->18         started        20 aspnet_compiler.exe 10->20         started        file5 signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 22 explorer.exe 15->22 injected 73 Tries to detect virtualization through RDTSC time measurements 18->73 process9 dnsIp10 35 www.mercydm.mobi 22->35 37 mercydm.mobi 34.102.136.180, 49705, 80 GOOGLEUS United States 22->37 49 System process connects to network (likely due to code injection or exploit) 22->49 26 cmd.exe 22->26         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 26->51 53 Maps a DLL or memory area into another process 26->53 55 Tries to detect virtualization through RDTSC time measurements 26->55 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6d3397c687aea5017b90a5e96adc6fbfb0429d56a8b2ead1f1d4273994952379/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-11-03 07:31:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nuzzpruhv2sqc64quxuwvxdpx6yefhkwvczovupr2qtttfeven4q._file
Verdict:
malicious
Similar samples:
162a5aa5e6e0298edbae1a494d2a3e177f0fb42b1c2e35eaecdbe1715d519694
Formbook
6ab70b64db33144464739beb641047bfb8f3d967c3561054d94e8dca267ca3a1
Formbook
6d2a192146876a4cbd53960fa55a8fe002e2280ef94642f880980dcb9eb7f5b4
Formbook
a634299f73b65280d2005c8d44a63cb28c4068d9c9ac6b29ba5052f0046d291f
Formbook
b1b878bdbd6ae390efbb3d9ab026ad02a3ff1fe95786b814f494a967415215ef
Formbook
c901b6665268a9f5eeaa9e29c8fe5b9fbacbdce09be63191fc137ce573898fe7
Formbook
+ 3'517 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:zx85 rat spyware stealer trojan
Link:
https://tria.ge/reports/221103-krldzsagcp/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e13cd842-2e27-4397-810d-15db376fd014
Unpacked files
SH256 hash:
1b8943d3a28932dc567b4dcf24b3b03ef2999bbc33ca4df7861acd6646807971
MD5 hash:
54219abb1a3baf98dd695121f1c18862
SHA1 hash:
160bb600a155f61ca50dfbb9d55bdc0ca81d006d
Link:
https://www.unpac.me/results/1c3c7c0e-c6a3-4301-a9c6-3e993eb7b59b/
SH256 hash:
6d3397c687aea5017b90a5e96adc6fbfb0429d56a8b2ead1f1d4273994952379
MD5 hash:
6f53598b9c19b30a0cf3ff0432301708
SHA1 hash:
4bd8e67e468adfbfddd9e5a1e47fdf318bf9a31b
Link:
https://www.unpac.me/results/1c3c7c0e-c6a3-4301-a9c6-3e993eb7b59b/
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/6d3397c687aea5017b90a5e96adc6fbfb0429d56a8b2ead1f1d4273994952379

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:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
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 6d3397c687aea5017b90a5e96adc6fbfb0429d56a8b2ead1f1d4273994952379

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2396480/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/327803/

Comments