MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b24a0fcfe00e88f0c5b7d98ae96e8bc24e8339b0a409973bb242832f7873399. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: 4b24a0fcfe00e88f0c5b7d98ae96e8bc24e8339b0a409973bb242832f7873399
SHA3-384 hash: 25713f299fc0897bbfd20563e6171e56d87e94233d21561c108aa7ad5d74a1ef71575e2292e45d2b43945f189a1cb3a9
SHA1 hash: 97ffec0c14db4736667c32183a9ab6743fee45fc
MD5 hash: 1bbaa8314bd9042e3171224d6d670bb9
humanhash: oxygen-thirteen-shade-hotel
File name:ungziped_file
Download: download sample
Signature Formbook
File size:576'000 bytes
First seen:2022-07-25 09:10:12 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:Wt31hPx8DqH9KldUnCh/NYcM/TYID7p+VC8PR8:aPx4qdKlin+1YcKkWp+VC2
TLSH T175C4E15FA95EDA13D1B04B3784D7E96913B87E12D963E74F38C8328B89623F30685643
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 080800082c0c0000 (3 x Formbook)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
301
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
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
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
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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-07-22 09:03:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:ceah 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
Xloader payload
Xloader
Unpacked files
SH256 hash:
39c2d879c57f07305ce60412dc8a88f02e51f1a14a06cc605768d1d7f5313807
MD5 hash:
db51fe170a9e5d6ec5429a2fbd9d0353
SHA1 hash:
e30a58125fc41322db6cf2ccb6a6d414ed379016
SH256 hash:
3305de7186fa3696809515e1d98e245f1bb2b144426952ddce8b0c32ee632d06
MD5 hash:
9f3862d59d71fe090db8a5c9b189e5be
SHA1 hash:
8bdf875bfa449f97d0db7d0c7f28155be243b012
SH256 hash:
ca4e3745f87ae419e10fa9dd15e9814f66a7dca601ae70bd3ae3b0b0781e9491
MD5 hash:
6491ab64072f34a6124f4cdf1d9bdd43
SHA1 hash:
78008e0c188d1732ebb5bbfe6d15892ebe32b1f7
SH256 hash:
f61e2dc82a444eb5f2d3138e4a78b9a9755208f84b8eeb6c4d35c516f6ce461d
MD5 hash:
0562edfa640effd97bb5fb530794fa88
SHA1 hash:
11c35bada2688bc70d7c64aad8ccf04d225a6b93
SH256 hash:
4b24a0fcfe00e88f0c5b7d98ae96e8bc24e8339b0a409973bb242832f7873399
MD5 hash:
1bbaa8314bd9042e3171224d6d670bb9
SHA1 hash:
97ffec0c14db4736667c32183a9ab6743fee45fc
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 4b24a0fcfe00e88f0c5b7d98ae96e8bc24e8339b0a409973bb242832f7873399

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments