MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 109bfc4f1d73233b058db08b761ad7c77a7bc43bfe2b10a71614e536c2e89d3a. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments

SHA256 hash: 109bfc4f1d73233b058db08b761ad7c77a7bc43bfe2b10a71614e536c2e89d3a
SHA3-384 hash: f14ee66c39099db8df9a1c44dae991dee91b86a28d8b92b46805419f4bf17daf535f342a9e93269815dfe310359b5077
SHA1 hash: 7f29c80d2fbc4c4a73f65684fb689543e202d684
MD5 hash: a17204c4cc765969839d22f78bc125bb
humanhash: foxtrot-south-nineteen-helium
File name:INV15420.exe
Download: download sample
Signature Formbook
File size:43'008 bytes
First seen:2022-02-28 13:58:09 UTC
Last seen:2022-03-02 08:20:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 768:Uc3YDiGMcZFGGjGl8dGBrvhxh+al24+JZEnBu7kMAH:UcI9LlKl8diDhxh+al24J87kJ
Threatray 13'761 similar samples on MalwareBazaar
TLSH T1E013D81263ECD62BCAAF057E94A1316612F1D6A332B5E3D1DDDF60A91C5EFD407202A3
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
4
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe 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
Found malware configuration
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 domain / URL
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
Sigma detected: CMSTP Execution Process Creation
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 579924 Sample: INV15420.exe Startdate: 28/02/2022 Architecture: WINDOWS Score: 100 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 6 other signatures 2->49 10 INV15420.exe 15 3 2->10         started        15 explorer.exe 39 2->15         started        process3 dnsIp4 33 olypath.com 178.18.193.160, 49726, 80 VARGONENTR Turkey 10->33 31 C:\Users\user\AppData\...\INV15420.exe.log, ASCII 10->31 dropped 59 Tries to detect virtualization through RDTSC time measurements 10->59 17 INV15420.exe 10->17         started        file5 signatures6 process7 signatures8 35 Modifies the context of a thread in another process (thread injection) 17->35 37 Maps a DLL or memory area into another process 17->37 39 Sample uses process hollowing technique 17->39 41 Queues an APC in another process (thread injection) 17->41 20 explorer.exe 17->20 injected process9 process10 22 cmstp.exe 20->22         started        signatures11 51 Self deletion via cmd delete 22->51 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        27 explorer.exe 1 135 22->27         started        process12 process13 29 conhost.exe 25->29         started       
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2022-02-28 10:32:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
20 of 28 (71.43%)
Threat level:
  2/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:ahc8 loader rat
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
Downloads MZ/PE file
Xloader Payload
Xloader
Unpacked files
SH256 hash:
109bfc4f1d73233b058db08b761ad7c77a7bc43bfe2b10a71614e536c2e89d3a
MD5 hash:
a17204c4cc765969839d22f78bc125bb
SHA1 hash:
7f29c80d2fbc4c4a73f65684fb689543e202d684
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 109bfc4f1d73233b058db08b761ad7c77a7bc43bfe2b10a71614e536c2e89d3a

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

Comments