MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f2852e38ccd6fa9cce1580220421fc57c80c4978ab11f54f94927974e5ae2a5. 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 3 File information Comments

SHA256 hash: 4f2852e38ccd6fa9cce1580220421fc57c80c4978ab11f54f94927974e5ae2a5
SHA3-384 hash: 15ca440f62c6fa7c64e20cab4f3c5c38c80be33ed8f0b246f50a7de0c9776f8fa337a2e17298537173a220e4ebc564dc
SHA1 hash: 42cfe966d3798b377e7018ae1a5e84c6ea33a7e6
MD5 hash: 97994e250df1a07b774985dd4b1a9c1e
humanhash: fruit-south-three-georgia
File name:Purchase Order.exe
Download: download sample
Signature Formbook
File size:837'120 bytes
First seen:2021-11-18 12:57:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:fXvf2E9AXnYuYU6V4YqRYEPOza041XwlAqiRAWLcffhCcfZ/2Yp44S2zG9+aw9cp:uE9AX1YJfgPFhRbIkk/2Yp44jZqN
Threatray 11'411 similar samples on MalwareBazaar
TLSH T13105011532B95F03C5FE87F49226914007F2765A62ABDB0F6CC3B1DB7E62B518B46A03
File icon (PE):PE icon
dhash icon c8c4e2f934dc2e16 (10 x Loki, 6 x Formbook, 6 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
1
# of downloads :
96
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4f2852e38ccd6fa9cce1.zip
Verdict:
Malicious activity
Analysis date:
2021-11-17 19:31:42 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
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
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated 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
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 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:
2021-11-17 16:39:05 UTC
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:e6wb loader rat
Behaviour
Gathers network information
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
Malware Config
C2 Extraction:
http://www.singleton-trading.com/e6wb/
Unpacked files
SH256 hash:
503a8922b64c70ac8de21622619dc98f092b3bb0cc8eb65e1861bd671dd94a0e
MD5 hash:
a94e5f623d684aa342dee759794c2033
SHA1 hash:
bce52dc7da9697b80c086ef1020c31e85f908ba4
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
90d923104d0467e962c248cd6add43c2fc21a2fcc3029fc1b50a3a5a7c5036ec
MD5 hash:
0782eb82751463a71069dac8a2c67c68
SHA1 hash:
eed4d04c37904f1dc2adc389cae8c0f9e57fb767
SH256 hash:
e9e7cab27e741b2d6824a4631d960e4aad3cde078127a88f382e30e37299dc30
MD5 hash:
dda191411e5faf8cc988da2fcf6bc15e
SHA1 hash:
e4b8b4734820cc76fd6034a347c7034634c583f0
SH256 hash:
86fe170cc6dd3a576807c1192a06ead68bf210f9ccd14f1a81d4f44c2dbcc25f
MD5 hash:
bf5c170790a9378101dbc312303925e3
SHA1 hash:
bddaf21c02ba5cec7c4dfd1b1f289e23714a8ba8
SH256 hash:
4f2852e38ccd6fa9cce1580220421fc57c80c4978ab11f54f94927974e5ae2a5
MD5 hash:
97994e250df1a07b774985dd4b1a9c1e
SHA1 hash:
42cfe966d3798b377e7018ae1a5e84c6ea33a7e6
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: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 4f2852e38ccd6fa9cce1580220421fc57c80c4978ab11f54f94927974e5ae2a5

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

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