MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1f842cf49a031ad6112edf767d3022d47391b39fd3bda6e7c456f5815f8bf742. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1f842cf49a031ad6112edf767d3022d47391b39fd3bda6e7c456f5815f8bf742
SHA3-384 hash: 241f9acd3550385e7aa9925c6157ae5333a78f4cbb47820f9f4bf68980a4b492abef797770dc1accf90bced3588a0e3e
SHA1 hash: 735926def0efdd6123fb5e6dd28b37e81e44fd91
MD5 hash: ce877088e8ee801231a24207267d7beb
humanhash: black-crazy-triple-may
File name:ZYJY-2021010005.RXHT0021.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:903'680 bytes
First seen:2021-08-09 11:05:32 UTC
Last seen:2021-08-09 11:52:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:ZSD19TejCYDeeWAHcIActYY6Sr336nWpIQNe6crQbwUfecvxpOZTHK7zVzKboASR:EDDKjv63AkTSb36YIJUf3xprFKboF
Threatray 7'683 similar samples on MalwareBazaar
TLSH T13E15DF6237D88A17E27937741570E27606F5BD853E31D24E6DD03DAB3BB6B808A60723
dhash icon 70e0f8eaeae8f870 (17 x AgentTesla, 10 x Formbook, 7 x SnakeKeylogger)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ZYJY-2021010005.RXHT0021.exe
Verdict:
Malicious activity
Analysis date:
2021-08-09 11:07:09 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/385391a4-4969-4cc8-8df4-e44755bd89a9

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/177517/
Detection(s):
Sanesecurity.Rogue.0hr.20210809-0909.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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/67ff8f62-cc07-4f04-9f2f-27f3137a4edb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/829226
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 461654 Sample: ZYJY-2021010005.RXHT0021.exe Startdate: 09/08/2021 Architecture: WINDOWS Score: 100 36 www.dailygame168.com 2->36 38 www.hydrarobuxobby.com 2->38 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 6 other signatures 2->54 11 ZYJY-2021010005.RXHT0021.exe 3 2->11         started        signatures3 process4 file5 34 C:\Users\...\ZYJY-2021010005.RXHT0021.exe.log, ASCII 11->34 dropped 66 Tries to detect virtualization through RDTSC time measurements 11->66 68 Injects a PE file into a foreign processes 11->68 15 ZYJY-2021010005.RXHT0021.exe 11->15         started        signatures6 process7 signatures8 70 Modifies the context of a thread in another process (thread injection) 15->70 72 Maps a DLL or memory area into another process 15->72 74 Sample uses process hollowing technique 15->74 76 Queues an APC in another process (thread injection) 15->76 18 explorer.exe 15->18 injected process9 dnsIp10 40 www.curtisbigelow.net 199.34.228.159, 49746, 80 WEEBLYUS United States 18->40 42 www.best123-movies.com 81.17.29.148, 49753, 80 PLI-ASCH Switzerland 18->42 44 3 other IPs or domains 18->44 56 System process connects to network (likely due to code injection or exploit) 18->56 58 Uses netstat to query active network connections and open ports 18->58 22 NETSTAT.EXE 12 18->22         started        26 autochk.exe 18->26         started        28 autochk.exe 18->28         started        signatures11 process12 dnsIp13 46 www.ia3v0m.com 22->46 60 Modifies the context of a thread in another process (thread injection) 22->60 62 Maps a DLL or memory area into another process 22->62 64 Tries to detect virtualization through RDTSC time measurements 22->64 30 cmd.exe 1 22->30         started        signatures14 process15 process16 32 conhost.exe 30->32         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1f842cf49a031ad6112edf767d3022d47391b39fd3bda6e7c456f5815f8bf742/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-09 04:53:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
22 of 46 (47.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=d6ccz5e2amnnmejo353h2mbc2rzzdm472o62nz6ek32ycx4l65ba._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
21819dfbcb4f450bc55706acc971444f6f3452604dc0c19a0b04f2e21732987b
Formbook
4c1b38391ab198fb0e2c7050a8951e65efbc818991fb710f6deeb2c76a54c734
Formbook
5023ffb96d6d21805c48f275dbb208a1671ab8dd7f3c170ca4dba1ac08c075f9
Formbook
cbe7c0318d2f88aff2f18fc19a824bfdebcf2f7137d85adac1a5799afbb6876b
Formbook
ee929bc954e0c858ca17de372ed70ec02343b1c48ab6631c07c60550a8da7b4d
Formbook
eebf2b5d558c3f39f52538f7d3175c732f38351dca734eb37bf975796dcc086a
Formbook
+ 7'673 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ipa8 loader rat suricata
Link:
https://tria.ge/reports/210809-8rhxnvsr9x/
Behaviour
Gathers network information
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
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.desarrollosolucionesnavarro.com/ipa8/
Unpacked files
SH256 hash:
f983da48ac2fd562b4a60f65633c6d5783e1779df39ce325b5e1c86e4030cc75
MD5 hash:
1e2eda83043bcf638d404c49e1a88b00
SHA1 hash:
e91f775f6d57d0ccb81e54cdf77a304d3684a153
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a4f03659-8f50-454c-bf3b-3642c8193dfa/
Parent samples :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 hash:
8061329d8c7115ad40f0a0d0ff628c502c5a69ecc93fb2437cce094fcd32f34c
MD5 hash:
0f40268be8ea63fac36cf8c3014a28cf
SHA1 hash:
2ac61d4490deb696610f06e332c30a647c316a1e
Link:
https://www.unpac.me/results/a4f03659-8f50-454c-bf3b-3642c8193dfa/
SH256 hash:
ed0dd1e2260da7b03c8b80e0b45e8fef44be722c1e8c41e078c1a25ed0d18ecc
MD5 hash:
6057ce35bd926dd6d49dedfa9cc18372
SHA1 hash:
1f4e44e1740ffbd91129ac3a37d22845bc52c158
Link:
https://www.unpac.me/results/a4f03659-8f50-454c-bf3b-3642c8193dfa/
SH256 hash:
1f842cf49a031ad6112edf767d3022d47391b39fd3bda6e7c456f5815f8bf742
MD5 hash:
ce877088e8ee801231a24207267d7beb
SHA1 hash:
735926def0efdd6123fb5e6dd28b37e81e44fd91
Link:
https://www.unpac.me/results/a4f03659-8f50-454c-bf3b-3642c8193dfa/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1f842cf49a03/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/1f842cf49a031ad6112edf767d3022d47391b39fd3bda6e7c456f5815f8bf742

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_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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.

Malspam

Formbook

rar 9ee324f352cb42be67afad04bd0e3ed46521c98a75cb6043e96047137c326911

Formbook

Executable exe 1f842cf49a031ad6112edf767d3022d47391b39fd3bda6e7c456f5815f8bf742

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 9ee324f352cb42be67afad04bd0e3ed46521c98a75cb6043e96047137c326911
Cape
Cape
https://www.capesandbox.com/analysis/177517/

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