MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c8c38f5165d4b2c0cd6200fe213aac210dbdda1780ece78cd46e6d6cc2020cd. 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 1

SHA256 hash: 3c8c38f5165d4b2c0cd6200fe213aac210dbdda1780ece78cd46e6d6cc2020cd
SHA3-384 hash: 9da0760e8953444fca1fb61c8d02efc698094e89dcceae59eb9ff82df030679f4742501b3dd3e45514036dfc1292971f
SHA1 hash: 222210df928d512d2b8ce9d02027015eb277bfde
MD5 hash: 1407b90257c3feb4841dd6df7c1641ae
humanhash: fruit-juliet-lemon-robert
File name:1407b90257c3feb4841dd6df7c1641ae
Download: download sample
Signature Formbook
File size:674'816 bytes
First seen:2022-04-25 16:34:16 UTC
Last seen:2022-04-25 17:38:55 UTC
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:tpMI3110DNeOZxTWik+FpMxSa3RWPAMV6Em4vVjNZ2vXm3DUzzYpYsiy6J8SR/EM:tpMEGDUwpjQb
Threatray 15'044 similar samples on MalwareBazaar
TLSH T18DE4BE57B159DE05C9B8BAF552205D9002A16E8E80B1D2F918A037B929F73C3FE417EF
TrID 49.6% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
21.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.9% (.SCR) Windows screen saver (13101/52/3)
7.1% (.EXE) Win64 Executable (generic) (10523/12/4)
4.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 0f3375cccc61338f (15 x AgentTesla, 11 x Formbook, 6 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
265
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Audit Confirmation Letter.docx
Verdict:
Malicious activity
Analysis date:
2022-04-25 08:39:55 UTC
Tags:
opendir trojan exploit CVE-2017-11882 loader formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed replace.exe update.exe
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 615098 Sample: 5D07bMyTAI Startdate: 25/04/2022 Architecture: WINDOWS Score: 100 31 www.kazinonadengi.com 2->31 33 www.aw616.com 2->33 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 6 other signatures 2->43 11 5D07bMyTAI.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\5D07bMyTAI.exe.log, ASCII 11->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 15 5D07bMyTAI.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.ferdossi.com 88.99.242.142, 49809, 80 HETZNER-ASDE Germany 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 22 chkdsk.exe 18->22         started        signatures11 process12 signatures13 47 Self deletion via cmd delete 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 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-04-25 04:17:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:grh2 loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
bcd2fbfbf288415149a91fafddb4b078653960834dce345c95ff8066d881f43e
MD5 hash:
e033d334fe558d21e1fc05684497e857
SHA1 hash:
ffa97787a55717a8d6e8b5e15c574e6129907f9d
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
09cd3bc420c8982190990a9673b58c3ab01e933dff0881f1e521d3316f1b9a6b
MD5 hash:
6933707e111286a128ad0f7fa298153f
SHA1 hash:
d1121c8bed634e9684727e8c0aad3f597b0749ad
SH256 hash:
2a9fc5f48fc24e9f8f1067ca5a7b8c606d84698692e2dba3f406a4178cca6e01
MD5 hash:
50072865c10c0240cca53ac7bebdd4a5
SHA1 hash:
7d1532b8fe49cb5d36266216a3830f37ea53b5a2
SH256 hash:
dbdbbc7853d2024ca7bde32ca6a4adcef7ce952b0599a0ebac906af384fe5ae4
MD5 hash:
b56dcc0eb4910b031d9be84d547be40d
SHA1 hash:
1ecee155c16b0dcfa30c62b235ebeae8f458f958
SH256 hash:
3c8c38f5165d4b2c0cd6200fe213aac210dbdda1780ece78cd46e6d6cc2020cd
MD5 hash:
1407b90257c3feb4841dd6df7c1641ae
SHA1 hash:
222210df928d512d2b8ce9d02027015eb277bfde
Please note that we are no longer able to provide a coverage score for Virus Total.

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:pdb2
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 3c8c38f5165d4b2c0cd6200fe213aac210dbdda1780ece78cd46e6d6cc2020cd

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-04-25 16:34:24 UTC

url : hxxp://144.208.127.248/kudar/LoaderX.exe