MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f71ffb7f3aa8f472021605310da900b36925efcf3f2965b6e541f0aaab4eb1c3. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments

SHA256 hash: f71ffb7f3aa8f472021605310da900b36925efcf3f2965b6e541f0aaab4eb1c3
SHA3-384 hash: a57cf4bb3521b86c6f163486ae8cb5f1d3929f1ec104bc3dd7a6f6b84756f55bc18ff1cd5e32788567ffb0864610f129
SHA1 hash: 60b4de3550f6fa9870c9bd9558b3d43df479b097
MD5 hash: 6e0159efe85688cfb1435ff58cf8d3b4
humanhash: leopard-earth-oven-jersey
File name:ARGENTINA NEW ORDER.scr
Download: download sample
Signature Formbook
File size:800'768 bytes
First seen:2022-04-10 09:52:58 UTC
Last seen:2022-04-11 06:56:38 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 24576:9QHe+LU1EdlxkQBaUxm9MhIVuEpzqeMFfr:9Q++LUcxBaUxm98I71UD
Threatray 14'723 similar samples on MalwareBazaar
TLSH T1250501DD321036DFC86BC472DEA95CA4BB6178BB470B6113A05329EE9E4C897CF104E6
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
324
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
ARGENTINA NEW ORDER.scr
Verdict:
Malicious activity
Analysis date:
2022-04-10 09:53:36 UTC
Tags:
formbook trojan stealer

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

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
PE file contains section with special chars
PE file has nameless sections
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 606482 Sample: ARGENTINA NEW ORDER.scr Startdate: 10/04/2022 Architecture: WINDOWS Score: 100 31 www.unethical.world 2->31 33 unethical.world 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 14 other signatures 2->47 11 ARGENTINA NEW ORDER.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\ARGENTINA NEW ORDER.exe.log, ASCII 11->29 dropped 59 Injects a PE file into a foreign processes 11->59 15 ARGENTINA NEW ORDER.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.vector-center.xyz 185.215.4.20, 49790, 80 TVHORADADAES Denmark 18->35 37 parvatakrachka.com 91.196.124.39, 49818, 80 SUPERHOSTING_ASBG Bulgaria 18->37 39 www.parvatakrachka.com 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 51 Performs DNS queries to domains with low reputation 18->51 22 msiexec.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 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:
2022-04-10 08:30:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:s16r rat spyware stealer suricata trojan
Behaviour
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
b6ce6a74ccd1c19807f6d5df52784c6c3e4b266000568fca05cd91fdd3f69fb4
MD5 hash:
cadc7390b59bd697e9cd8d0995fecfa7
SHA1 hash:
fd36d8397807a67c630b9392e9ab43319868598a
SH256 hash:
0c3d396ed71ff1d8184a3fdfb95107382ac101c6c6ddb35c5492739d860f7b6d
MD5 hash:
c9595a2db06da29940a86f6ac02c10b8
SHA1 hash:
8ed9adc17604b143d10312c0eb00b6d36fe4342a
SH256 hash:
e11871df824c3130e35f2c94d672404e18ebefddf3172d166f2e640ad3686c73
MD5 hash:
4379771ccd9b927712ef2505214161df
SHA1 hash:
6636b7b80e279de67c60b52277f566463afebf8e
SH256 hash:
f71ffb7f3aa8f472021605310da900b36925efcf3f2965b6e541f0aaab4eb1c3
MD5 hash:
6e0159efe85688cfb1435ff58cf8d3b4
SHA1 hash:
60b4de3550f6fa9870c9bd9558b3d43df479b097
Malware family:
FormBook
Verdict:
Malicious
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:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

Malspam

Formbook

Executable exe f71ffb7f3aa8f472021605310da900b36925efcf3f2965b6e541f0aaab4eb1c3

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments