MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7ac2e4aad0054c77e7a2205d156da7032021be264702c8fa76eab7ebc44556ff. 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 6 File information Comments

SHA256 hash: 7ac2e4aad0054c77e7a2205d156da7032021be264702c8fa76eab7ebc44556ff
SHA3-384 hash: 96a8adb67c9643080dc3005c2eddbc28a530e80291661940b91c0e2c9a2fcf169407d90933cc7b28e2a5ec67208a3c51
SHA1 hash: bf02ae8e6366c42dd0d714661de446ac91883cf3
MD5 hash: 3805c827d00ac0e566ea1e1428831eba
humanhash: blue-two-video-uranus
File name:payment-receipt.exe
Download: download sample
Signature Formbook
File size:532'444 bytes
First seen:2023-01-16 16:04:47 UTC
Last seen:2023-01-16 17:41:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:nYa6iEXH6iXohKyAz6zcePu79lJTzxjmUZSKYlks:nY9nyAShW7xTzFmG2ks
TLSH T163B45AC4F620C691D436B230691777224EAC9EED7430BDC4227B38677A33366BC6E956
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 72f4ccdaf0cce8f0 (1 x Formbook)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
219
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
payment-receipt.exe
Verdict:
Malicious activity
Analysis date:
2023-01-16 16:06:17 UTC
Tags:
formbook xloader 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 file in the %temp% directory
Creating a window
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
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:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Initial sample is a PE file and has a suspicious name
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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 785209 Sample: payment-receipt.exe Startdate: 16/01/2023 Architecture: WINDOWS Score: 100 34 www.fromsendmail.xyz 2->34 50 Snort IDS alert for network traffic 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for URL or domain 2->54 56 5 other signatures 2->56 12 payment-receipt.exe 19 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\tzkdrwqrs.exe, PE32 12->32 dropped 15 tzkdrwqrs.exe 12->15         started        process6 signatures7 68 Detected unpacking (changes PE section rights) 15->68 70 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->70 72 Maps a DLL or memory area into another process 15->72 74 2 other signatures 15->74 18 tzkdrwqrs.exe 15->18         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Sample uses process hollowing technique 18->46 48 Queues an APC in another process (thread injection) 18->48 21 explorer.exe 2 1 18->21 injected process10 dnsIp11 36 elementalmfr.com 76.223.105.230, 49695, 80 AMAZON-02US United States 21->36 38 www.kuw844.com 21->38 40 3 other IPs or domains 21->40 58 System process connects to network (likely due to code injection or exploit) 21->58 60 Uses ipconfig to lookup or modify the Windows network settings 21->60 25 ipconfig.exe 21->25         started        signatures12 process13 signatures14 62 Modifies the context of a thread in another process (thread injection) 25->62 64 Maps a DLL or memory area into another process 25->64 66 Tries to detect virtualization through RDTSC time measurements 25->66 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2023-01-16 16:05:08 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:p01s 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
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Unpacked files
SH256 hash:
96f06662ff2d21fb042e3e1c242f5a96269b3632d71ab624a3f923881455f6f7
MD5 hash:
dec8e12dbf27ada83924fbaa1b2d6055
SHA1 hash:
5757aa738f2e9a07bb2f79ab1b3167925b3b0080
Detections:
FormBook win_formbook_auto win_formbook_g0
SH256 hash:
406d1d198937416febe6c3e84cae03e606fc98fb4d8f6803a5e446eb695513ec
MD5 hash:
3f6fb269ec24d0ef32d3d2145876dbd2
SHA1 hash:
7050c5731db5a662c7c95d05a58fb37402368366
SH256 hash:
7ac2e4aad0054c77e7a2205d156da7032021be264702c8fa76eab7ebc44556ff
MD5 hash:
3805c827d00ac0e566ea1e1428831eba
SHA1 hash:
bf02ae8e6366c42dd0d714661de446ac91883cf3
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:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
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.

Comments