MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bc96a8bb1739c227e539a7aa4156cb6c1023a254e2660135351edbe9a7db8e2. 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 3 File information Comments

SHA256 hash: 4bc96a8bb1739c227e539a7aa4156cb6c1023a254e2660135351edbe9a7db8e2
SHA3-384 hash: e1a66f5dff81a835a6230322c6a2300fd5eae7e366ce5c59a1146f3dc79b1b96051905312ff7f21cd0c96ee240d53508
SHA1 hash: c7cb37fdef685b323b5e7bb3d3adaea82fb52457
MD5 hash: 9e2400279829b8159a6141f370ba08ce
humanhash: carbon-oranges-sink-vermont
File name:Order_001.exe
Download: download sample
Signature Formbook
File size:394'570 bytes
First seen:2021-12-27 13:17:02 UTC
Last seen:2022-01-04 14:01:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGiWCT0TxzJtpzENUAb34YEo3bMfO7glz5tK7ItFqkdJpaqaVN4EAjdYAoAjA:6LNtZAD4YP3ildtII/VdJjC4zhL8
Threatray 12'523 similar samples on MalwareBazaar
TLSH T1FA84234E6CC0B27FFA9722F4D82F7B20B6B7C35559560963CB911ED22C5CA47C40971A
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
244
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Order_001.exe
Verdict:
Malicious activity
Analysis date:
2021-12-27 13:21:24 UTC
Tags:
installer trojan formbook 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
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
60%
Tags:
overlay 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
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
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)
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 545598 Sample: Order_001.exe Startdate: 27/12/2021 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 4 other signatures 2->42 10 Order_001.exe 17 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\Temp\...\gciz.dll, PE32 10->28 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 56 Injects a PE file into a foreign processes 10->56 14 Order_001.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 onoffphoto.com 74.215.64.130, 49794, 80 FUSE-NETUS United States 17->30 32 www.waterdamageinspection.sbs 172.67.219.87, 49811, 80 CLOUDFLARENETUS United States 17->32 34 3 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 msdt.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:
Win32.Trojan.Barys
Status:
Malicious
First seen:
2021-12-27 13:17:10 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:st28 rat spyware stealer trojan
Behaviour
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
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
Unpacked files
SH256 hash:
8fcee07ca8a2856247c5c2897d39aff5cb8413186e2cceb51e3fc444223fc844
MD5 hash:
80091ee7a72e3286f8d3a8ed4c586149
SHA1 hash:
244f8a637d09d428608c9858d10709265c5832a2
SH256 hash:
4bc96a8bb1739c227e539a7aa4156cb6c1023a254e2660135351edbe9a7db8e2
MD5 hash:
9e2400279829b8159a6141f370ba08ce
SHA1 hash:
c7cb37fdef685b323b5e7bb3d3adaea82fb52457
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:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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 4bc96a8bb1739c227e539a7aa4156cb6c1023a254e2660135351edbe9a7db8e2

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments