MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9b4df9f66fdc83879d2ce5c5077f51e0ca02af50050fdeaccaca982bc0c59b52. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: 9b4df9f66fdc83879d2ce5c5077f51e0ca02af50050fdeaccaca982bc0c59b52
SHA3-384 hash: e8fb83ef15d004acba2d35ce6a63be6a6514df2a663724e26347dc00ae9f26e16fe9e5c40c6daebae69a742fd0c82e37
SHA1 hash: daa9da9fedad87b33a9d2e89259629235bb2b015
MD5 hash: 17afae8266f4de31b69aa5bde0892dad
humanhash: jupiter-hamper-freddie-magazine
File name:shipping document_pdf.gz.exe
Download: download sample
Signature Formbook
File size:781'312 bytes
First seen:2022-11-10 08:57:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:ZYjdLVY4jMBtwfhTehM/YQkIEDKLyuiOzBpBF1HFkBoq:lCTMQrE+LjZ3T1H2uq
TLSH T128F48C68A152C999F69F537290ECFFB023F271E3D1C9C71792A86184D7C9F960D8128E
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13097/50/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0ce4d09ecefc799a (13 x Formbook, 9 x AgentTesla, 6 x SnakeKeylogger)
Reporter cocaman
Tags:exe FormBook Shipping

Intelligence


File Origin
# of uploads :
1
# of downloads :
199
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
shipping document_pdf.gz.exe
Verdict:
Malicious activity
Analysis date:
2022-11-10 09:00:50 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
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed rundll32.exe
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
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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
Snort IDS alert for network traffic
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: 742882 Sample: shipping document_pdf.gz.exe Startdate: 10/11/2022 Architecture: WINDOWS Score: 100 36 www.25038.top 2->36 42 Snort IDS alert for network traffic 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 9 other signatures 2->48 11 shipping document_pdf.gz.exe 3 2->11         started        signatures3 process4 file5 34 C:\Users\...\shipping document_pdf.gz.exe.log, ASCII 11->34 dropped 14 shipping document_pdf.gz.exe 11->14         started        17 shipping document_pdf.gz.exe 11->17         started        19 shipping document_pdf.gz.exe 11->19         started        21 2 other processes 11->21 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 23 explorer.exe 14->23 injected process8 dnsIp9 38 storkrv.com 76.223.105.230, 49707, 80 AMAZON-02US United States 23->38 40 www.storkrv.com 23->40 50 System process connects to network (likely due to code injection or exploit) 23->50 27 svchost.exe 23->27         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 27->52 54 Maps a DLL or memory area into another process 27->54 56 Tries to detect virtualization through RDTSC time measurements 27->56 30 cmd.exe 1 27->30         started        process13 process14 32 conhost.exe 30->32         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-11-10 07:12:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
62
AV detection:
19 of 41 (46.34%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook cobaltstrike
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:sy01 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
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
bc444c4ec803b91da7af06cb0eb233fe69f565067f89544bf750fc17a9ede6dd
MD5 hash:
b52058082749f08bbcb7036b0d4189e8
SHA1 hash:
90365baf6b18ff3139da00cd5caf30660643110e
SH256 hash:
14d6e307d50c4754bf52fa926d794aaef853420a3c35ae18f853c8a3431650e7
MD5 hash:
6c8198b2bb48402b671d979ea661d908
SHA1 hash:
6ebb9a79433a69b6abad565f185f7ec3b2399bf6
SH256 hash:
e77c0e5bbe7c1fe2de316a03b698072ac0a8c2b6a47b053327217e6b716d1ee6
MD5 hash:
4aa410b0dd71a3848f475ed94cabfad1
SHA1 hash:
56a829f0ac98f28340cbc8f618db7e138f9332cf
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
SH256 hash:
9b4df9f66fdc83879d2ce5c5077f51e0ca02af50050fdeaccaca982bc0c59b52
MD5 hash:
17afae8266f4de31b69aa5bde0892dad
SHA1 hash:
daa9da9fedad87b33a9d2e89259629235bb2b015
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: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 9b4df9f66fdc83879d2ce5c5077f51e0ca02af50050fdeaccaca982bc0c59b52

(this sample)

Comments