MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c585cd63fab6a0ccbc7bd9e5b5532a093248ce1cb893b8a7e825d8720fc1eb9. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: 8c585cd63fab6a0ccbc7bd9e5b5532a093248ce1cb893b8a7e825d8720fc1eb9
SHA3-384 hash: 3f442a64568fd45a6cd896f5e05d9e6e716fb19f040d076d69af3bae93b50f63753dfcab3e04ca7f9fe6019a2580a0ad
SHA1 hash: 8a23a8957aa4880c3f0d150cb615d2d6e1934079
MD5 hash: 19ee41d333996f2289255419efa2d4a4
humanhash: paris-princess-cold-high
File name:Payment receipt z.exe
Download: download sample
Signature Formbook
File size:49'152 bytes
First seen:2022-05-09 11:04:23 UTC
Last seen:2022-05-09 11:36:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:GR5+8av0og2L1u7O2UcWvR6euxlmMwCK/3deVDR:U+8avBg2heO2jP630VDR
Threatray 1'155 similar samples on MalwareBazaar
TLSH T16223E86A288A6629C5D47BFC58B1A58321366CE00524C2CFF8FD7F29AD33623DEC515D
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 174f4559191b1b13 (81 x AgentTesla, 68 x Formbook, 34 x SnakeKeylogger)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
233
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment receipt z.exe
Verdict:
Suspicious activity
Analysis date:
2022-05-09 11:09:56 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
Launching the process to change network settings
Searching for synchronization primitives
Launching cmd.exe command interpreter
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Verdict:
UNKNOWN
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
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 622616 Sample: Payment receipt z.exe Startdate: 09/05/2022 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 10 other signatures 2->44 9 Payment receipt z.exe 15 4 2->9         started        process3 dnsIp4 36 designerwf.com 87.236.167.237, 443, 49706 EXCELLGB unknown 9->36 34 C:\Users\user\...\Payment receipt z.exe.log, ASCII 9->34 dropped 54 Injects a PE file into a foreign processes 9->54 14 Payment receipt z.exe 9->14         started        17 cmd.exe 1 9->17         started        file5 signatures6 process7 signatures8 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 19 wscript.exe 14->19         started        22 explorer.exe 14->22 injected 24 autoconv.exe 14->24         started        26 conhost.exe 17->26         started        28 timeout.exe 1 17->28         started        process9 signatures10 46 Self deletion via cmd delete 19->46 48 Modifies the context of a thread in another process (thread injection) 19->48 50 Maps a DLL or memory area into another process 19->50 52 Tries to detect virtualization through RDTSC time measurements 19->52 30 cmd.exe 1 19->30         started        process11 process12 32 conhost.exe 30->32         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-05-09 10:51:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:fk84 loader rat suricata
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
8c585cd63fab6a0ccbc7bd9e5b5532a093248ce1cb893b8a7e825d8720fc1eb9
MD5 hash:
19ee41d333996f2289255419efa2d4a4
SHA1 hash:
8a23a8957aa4880c3f0d150cb615d2d6e1934079
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 8c585cd63fab6a0ccbc7bd9e5b5532a093248ce1cb893b8a7e825d8720fc1eb9

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments