MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d5a298726b4735d30f3af5331c0a8dc948178a7a776c5961497ceb6fb64ea975. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: d5a298726b4735d30f3af5331c0a8dc948178a7a776c5961497ceb6fb64ea975
SHA3-384 hash: 2f13edd3c891a3dc521c9183ae62660b060e46495409b9b701521abbe4b4431c7e1833c1afc3c99306e30288ff5436ff
SHA1 hash: 21be2d4fae7b2f8700ee73434d8ab09cbd68be8d
MD5 hash: d03cc6bb0b842ca17e71c99966c37366
humanhash: grey-october-mirror-muppet
File name:PI_2021.exe
Download: download sample
Signature Formbook
File size:873'984 bytes
First seen:2021-11-01 00:17:10 UTC
Last seen:2021-11-01 02:11:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:F59C7ZnMqJFTPORNkGyqViyWCcElQbNb0+ta3cvYrDinoRQdU20CyGTXi9uMAu7I:F59C76qgpy0BTqNw+e2p
Threatray 11'173 similar samples on MalwareBazaar
TLSH T176055BB9325176DFC96BCE76CA682C54EFA07877431BC207A41705AD9A8D897CF201F2
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
154
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PI_2021.exe
Verdict:
Malicious activity
Analysis date:
2021-11-01 00:19:53 UTC
Tags:
n/a

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
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Launching the default Windows debugger (dwwin.exe)
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Unauthorized injection to a browser 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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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 submitted file
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 signatures2 2 Behavior Graph ID: 512522 Sample: PI_2021.exe Startdate: 01/11/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 7 other signatures 2->42 10 PI_2021.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\PI_2021.exe.log, ASCII 10->28 dropped 54 Detected unpacking (changes PE section rights) 10->54 56 Detected unpacking (overwrites its own PE header) 10->56 58 Tries to detect virtualization through RDTSC time measurements 10->58 60 Injects a PE file into a foreign processes 10->60 14 PI_2021.exe 10->14         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 17 explorer.exe 14->17 injected process8 dnsIp9 30 useroadly.com 162.0.235.143, 49790, 80 NAMECHEAP-NETUS Canada 17->30 32 www.drfllc.top 154.83.122.169, 49792, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 17->32 34 www.useroadly.com 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 wscript.exe 17->21         started        signatures10 process11 signatures12 46 Self deletion via cmd delete 21->46 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-10-31 15:01:49 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:snr6 rat spyware stealer trojan
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.reynbetgirisi.com/snr6/
Unpacked files
SH256 hash:
a24b017645ad75f78552719251c33471c0a92f3cc19578db10b0ede79fb85556
MD5 hash:
ed4b0496fe05020acdf441fbaa04c7ae
SHA1 hash:
84ab04cd144a22b7f8e9e8d1a1c32d412857dc94
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
SH256 hash:
99c0d8489e2c9e657f048e4d256bb7802a8c4350b577186dfc6d2c3f240c25a8
MD5 hash:
2456dd5b5bab9aff24f0046c605275c7
SHA1 hash:
3b8251ed1809140664b5deee644550960d255cf9
SH256 hash:
d5a298726b4735d30f3af5331c0a8dc948178a7a776c5961497ceb6fb64ea975
MD5 hash:
d03cc6bb0b842ca17e71c99966c37366
SHA1 hash:
21be2d4fae7b2f8700ee73434d8ab09cbd68be8d
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:pe_imphash
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.

Malspam

Formbook

Executable exe d5a298726b4735d30f3af5331c0a8dc948178a7a776c5961497ceb6fb64ea975

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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