MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 283701722fd569d223d0118a3e85b3e63fa97af7a66dd452d9da0346cefd40bf. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 283701722fd569d223d0118a3e85b3e63fa97af7a66dd452d9da0346cefd40bf
SHA3-384 hash: d4dc39ee983b99b09819b47687c6195f41a5ebdf811e9d6d47f61ee791153c13c398646aeea346602fe690b305c5a47c
SHA1 hash: a0625fd91fe241eb49b1e25c87edf6f5fa5c793e
MD5 hash: 1a5cda84c98bb1cacff0d931ca896a81
humanhash: crazy-massachusetts-green-mike
File name:Pls. Review Attached.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'263'038 bytes
First seen:2023-05-30 14:17:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 12e12319f1029ec4f8fcbed7e82df162 (388 x DCRat, 52 x RedLineStealer, 51 x Formbook)
ssdeep 24576:vTbBv5rUPL6byutZfb8Zqlc3fwStW7syeVKN/5ivrWvU:ZBwW1ZIUStWgy0KN/5ivriU
Threatray 72 similar samples on MalwareBazaar
TLSH T13E451202BBC1D9B2D0661C724B35AB21693DBD311F64CADF63D41A6EDA312C1D631B63
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b470d4d4dcdcdcf0 (2 x Formbook, 2 x AgentTesla, 1 x AsyncRAT)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
295
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Pls. Review Attached.exe
Verdict:
Suspicious activity
Analysis date:
2023-05-30 14:18:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7bf27fec-52aa-425b-a598-e97ab3dc9b76

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/393612/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.38920448.13962.7593.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Launching a process
Running batch commands
Creating a process with a hidden window
Creating a process from a recently created file
Sending a UDP request
Creating a file
DNS request
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/88731/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm autoit cmd.exe evasive greyware keylogger lolbin overlay packed packed setupapi.dll shdocvw.dll shell32.dll wscript wscript.exe
Link:
https://www.filescan.io/uploads/6476059bf51ad5d4fcf9ac5a/reports/e1a662b1-6bb2-41e1-ae6b-e1564a55a63d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/283701722fd569d223d0118a3e85b3e63fa97af7a66dd452d9da0346cefd40bf
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1279d2a4-492b-45c4-9d17-9fe73e744e84
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1245385
Signature
Allocates memory in foreign processes
Contains functionality to inject code into remote processes
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Starts an encoded Visual Basic Script (VBE)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 878392 Sample: Pls._Review_Attached.exe Startdate: 30/05/2023 Architecture: WINDOWS Score: 100 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected FormBook 2->47 49 2 other signatures 2->49 9 Pls._Review_Attached.exe 13 2->9         started        process3 file4 39 C:\Users\user\AppData\Local\...\kgsifum.msc, PE32 9->39 dropped 59 Starts an encoded Visual Basic Script (VBE) 9->59 13 wscript.exe 1 9->13         started        signatures5 process6 process7 15 cmd.exe 1 13->15         started        17 cmd.exe 1 13->17         started        20 cmd.exe 1 13->20         started        signatures8 22 kgsifum.msc 2 15->22         started        25 conhost.exe 15->25         started        41 Uses ipconfig to lookup or modify the Windows network settings 17->41 27 conhost.exe 17->27         started        29 ipconfig.exe 1 17->29         started        31 conhost.exe 20->31         started        33 ipconfig.exe 1 20->33         started        process9 signatures10 51 Multi AV Scanner detection for dropped file 22->51 53 Contains functionality to inject code into remote processes 22->53 55 Writes to foreign memory regions 22->55 57 2 other signatures 22->57 35 RegSvcs.exe 22->35         started        37 RegSvcs.exe 22->37         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/283701722fd569d223d0118a3e85b3e63fa97af7a66dd452d9da0346cefd40bf/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-05-30 08:06:14 UTC
File Type:
PE (Exe)
Extracted files:
99
AV detection:
27 of 37 (72.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fa3qc4rp2vu5ei6qcgfd5bnt4y72s6xxuzw5iuwz3ibuntx5ic7q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0349fcd562c68adc726cea4e84cf6dab9c572a6cbb97c2018a9092126524d719
Formbook
2297e75fe8813c4d7c4b3514e0763d2cdc08b1b8a30962afac4dc6f00ce6fddf
Formbook
2cb0d3b3c2a398a778d18b089cf68d8f7fd91808da695bee0f0fb556354efe09
Formbook
623d9a74747fe5ff5e72eb70d6ba2d2906eab55b5db50d796728e6d7ab492c79
Formbook
715aa59e7d1e568ad1e76c6ede8c762ec5d671723439d131f6b638c025fd7cb6
Formbook
9580bddf76a3d9179e760fba40850e85f6dc3baad1356165b78cf160bad11f28
Formbook
d3d3c216728f58044cae30180c84e75db170ea200860ae9415004f3a0f167ec3
Formbook
d6cb7358c0741c5f1e50c5d8fef2423d960345a59e722a88d852049a9226811e
Formbook
dcef53803395ab07ecfa4230ae586003b507e875cd93bae17648c47b536a7622
Formbook
+ 62 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230530-rlq6lsad2v/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
10edbc17107cdd024f7862bd2b0c22b62e7d809196810d5dcdff5011afafd9a5
MD5 hash:
b37c0d632b70060e5ccd6023002a389c
SHA1 hash:
0aa0678ae3d1438ea5e0714092e0c1ee8699d99e
Link:
https://www.unpac.me/results/01e61b75-a98b-4df2-bc61-b251e4ba7f08/
SH256 hash:
283701722fd569d223d0118a3e85b3e63fa97af7a66dd452d9da0346cefd40bf
MD5 hash:
1a5cda84c98bb1cacff0d931ca896a81
SHA1 hash:
a0625fd91fe241eb49b1e25c87edf6f5fa5c793e
Link:
https://www.unpac.me/results/01e61b75-a98b-4df2-bc61-b251e4ba7f08/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/283701722fd5/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/283701722fd569d223d0118a3e85b3e63fa97af7a66dd452d9da0346cefd40bf

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:SelfExtractingRAR
Create hunting rule
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/393612/

Comments