MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da30dd86e912cbfcf0cb4306265cedf47604891dc868db7c59dd92d47ad32063. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments

SHA256 hash: da30dd86e912cbfcf0cb4306265cedf47604891dc868db7c59dd92d47ad32063
SHA3-384 hash: b7c3512fc8dcfae16fda95a968cbb6a8125902e7f1c05cfa2d42f0699d47796331e319130a89604f8fdc6f0cf29de98c
SHA1 hash: ab366dd1e83767d123ca9dd16641aefd8a81297d
MD5 hash: cdf55ed6d4b6226f656ccbd5ac6f6a36
humanhash: louisiana-butter-triple-cola
File name:YfBbaU7UiZbHjbn.exe
Download: download sample
Signature Formbook
File size:558'080 bytes
First seen:2022-03-17 14:49:21 UTC
Last seen:2022-03-18 07:36:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'477 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:nLxWy/E+/IV/bcEHs6bJBtCUYCt5UzXKneVVl31dpbCb2vqbi+d9dkfwmdLF6z:LkycgEM6ftxmzaQj33Mb2CbnTVcAz
Threatray 14'243 similar samples on MalwareBazaar
TLSH T1C3C49C3F19686373CA7BD7758651142AF691C1EB7902AD18EED31B800D231CA7FC662E
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
4
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
YfBbaU7UiZbHjbn.exe
Verdict:
Malicious activity
Analysis date:
2022-03-17 23:49:32 UTC
Tags:
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
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed replace.exe
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 very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 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 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:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-03-17 14:13:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 27 (74.07%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:k8yh loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
30787d5a048718a7c4eb6f66505ad4f83da79bde40012a65c730433b78fd06c3
MD5 hash:
47024648125db5dfa880ec4bb69c6c20
SHA1 hash:
f73c533c7ad86a47ec1bd6675137a2e755d1cf6f
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
SH256 hash:
da30dd86e912cbfcf0cb4306265cedf47604891dc868db7c59dd92d47ad32063
MD5 hash:
cdf55ed6d4b6226f656ccbd5ac6f6a36
SHA1 hash:
ab366dd1e83767d123ca9dd16641aefd8a81297d
Malware family:
XLoader
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: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 da30dd86e912cbfcf0cb4306265cedf47604891dc868db7c59dd92d47ad32063

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

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