MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cff7a2fc753abddfa320fc226964bd5057bd544d148fe10b7d4617b683862ae. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4cff7a2fc753abddfa320fc226964bd5057bd544d148fe10b7d4617b683862ae
SHA3-384 hash: 5f58efae22a71e1c3fdb4045e4e884fb21cdc7f04530df33ae9099e83fc80398a6750f7133a98ac764c7b3533375eff7
SHA1 hash: 50ef778840f9462e47dbea609a649aa0551368f6
MD5 hash: 40baeea962978de8dc593d8d90c8ac40
humanhash: alpha-comet-neptune-uncle
File name:file
Download: download sample
Signature Formbook
Create hunting rule
File size:330'240 bytes
First seen:2022-11-15 14:29:22 UTC
Last seen:2022-11-15 17:52:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'472 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:z5HPZiLlqa+8HLN+aw38G4YZjBhY8RYgv0hpZQ4XwgozM0qVcqHcNQoQ6Y1lD:pPZelqa+8HLo3MIjBhtRYLJQ/go4NXcQ
Threatray 60 similar samples on MalwareBazaar
TLSH T15164DFDD726072DFC8A7C472DEE82C68FA6074BB831B4257902316DE9A0C957DF641B2
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)
Reporter jstrosch
Tags:.NET exe FormBook MSIL

Intelligence

File Origin
# of uploads :
2
# of downloads :
207
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
product list.js
Verdict:
Malicious activity
Analysis date:
2022-11-15 12:11:15 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/7ff1b7c7-fac9-471e-9b79-5591c317e244

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/334346/
Detection(s):
Win.Dropper.LokiBot-9969312-0
Create hunting rule

PUA.Win.Packed.ConfuserEx-6391397-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lokibot obfuscated packed
Link:
https://www.filescan.io/uploads/6373a26df75d59fef0b977e4/reports/f0ed5999-c1a6-4ec7-be13-1473db90315e/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/bbd2a3d7-2563-4a7f-9867-1d0e6d91efc3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1113877
Signature
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)
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 746589 Sample: file.exe Startdate: 15/11/2022 Architecture: WINDOWS Score: 100 31 www.m3in76.cyou 2->31 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 6 other signatures 2->41 9 file.exe 1 2->9         started        signatures3 process4 file5 23 C:\Users\user\AppData\Local\...\file.exe.log, CSV 9->23 dropped 51 Writes to foreign memory regions 9->51 53 Allocates memory in foreign processes 9->53 55 Injects a PE file into a foreign processes 9->55 57 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 9->57 13 RegSvcs.exe 9->13         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 13->59 61 Maps a DLL or memory area into another process 13->61 63 Sample uses process hollowing technique 13->63 65 Queues an APC in another process (thread injection) 13->65 16 explorer.exe 13->16 injected process9 dnsIp10 25 www.hnsmhbkj.com 154.208.150.147, 49723, 49724, 49725 SKHT-ASShenzhenKatherineHengTechnologyInformationCo Seychelles 16->25 27 www.snzbx.com 23.82.252.195, 49730, 49731, 49732 LEASEWEB-USA-LAX-11US United States 16->27 29 3 other IPs or domains 16->29 33 System process connects to network (likely due to code injection or exploit) 16->33 20 help.exe 13 16->20         started        signatures11 process12 signatures13 43 Tries to steal Mail credentials (via file / registry access) 20->43 45 Tries to harvest and steal browser information (history, passwords, etc) 20->45 47 Modifies the context of a thread in another process (thread injection) 20->47 49 Maps a DLL or memory area into another process 20->49
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4cff7a2fc753abddfa320fc226964bd5057bd544d148fe10b7d4617b683862ae/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-11-15 04:05:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jt7xul6hkov536rsb7bcnfsl2ucxxvke2fep4efx2rqxw2bymkxa._file
Verdict:
malicious
Similar samples:
0065495640ca573d1528ef14bfc33d30e1a5542b95d05601fb1fc49de4bb64f7
Formbook
056a418a5845dd5395833d8ec888e661712004bb0d4aa4c7bd7cf3bf87325085
Formbook
226abb03563c18970c9c94a4ab6e348d635504ae596a6e52b08d200eb7aa9b06
Formbook
575c947f3754f0fbd194dbe3e99b7ac804c4e9fcb8b0dab89bb72175cc5d3cab
Formbook
7ac48628de4b567db12b4af67071cd3cf1279a3dced5a71cf3e9cba664f4f43a
Formbook
832fcd4a4a31f003162d5fea4b1eb81d10673fef0b37152bed77cf1822cc0983
Formbook
95e92cd26083c0470922af80c435a955617de77116bcfce667e94e68d2a9eae8
Formbook
b1865d79b8956cc7dd3940170bd4be0e34e937e0ba1ecf00b877ecf86a3c85b2
Formbook
b8445a1f01f0a7175eb9c8521b92223f989b844de32e852102c3fe5824c48097
Formbook
+ 50 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:tpd2 loader rat spyware stealer trojan
Link:
https://tria.ge/reports/221115-rt6k9sab4w/
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
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Formbook
Xloader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4314d899-010b-43a7-910d-336f26b4e9e7
Unpacked files
SH256 hash:
08dc131daa003bfef9743c47cc6707bdcfbf880795eb9f7f26f51b389e357afd
MD5 hash:
014cc98f0e3e039ec235d577ec2d459f
SHA1 hash:
dd5b12b49e99986a680d7cfa2b3b79714f03f68e
Link:
https://www.unpac.me/results/c53e0d0f-51c2-4c80-9957-05387d52b292/
SH256 hash:
deef4b85c163b222b024d54a3e090d695b1f5a8776af8f4a05ee3951784acb90
MD5 hash:
e7d84c33aa80fcca1c32130de29b4541
SHA1 hash:
a0507104432467be0d0b09b3531260f932b09d9b
Link:
https://www.unpac.me/results/c53e0d0f-51c2-4c80-9957-05387d52b292/
SH256 hash:
4cff7a2fc753abddfa320fc226964bd5057bd544d148fe10b7d4617b683862ae
MD5 hash:
40baeea962978de8dc593d8d90c8ac40
SHA1 hash:
50ef778840f9462e47dbea609a649aa0551368f6
Link:
https://www.unpac.me/results/c53e0d0f-51c2-4c80-9957-05387d52b292/
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/4cff7a2fc753abddfa320fc226964bd5057bd544d148fe10b7d4617b683862ae

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 4cff7a2fc753abddfa320fc226964bd5057bd544d148fe10b7d4617b683862ae

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/334346/
  
URLhaus
https://urlhaus.abuse.ch/url/2412842/

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