MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d46c030f172cbb13bd32d5b840491ed48525010216616591c1cd041b9cb3eea. 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



AsyncRAT


Vendor detections: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: 4d46c030f172cbb13bd32d5b840491ed48525010216616591c1cd041b9cb3eea
SHA3-384 hash: 3fb6224c3bc524d1be182a6dafa08fe4effbf236a645f66486cca460a4a47ed7dfe55755939e1c8e3834c341d9259a3c
SHA1 hash: af7d347366773b9fe16f8fadf5e3100f78b00707
MD5 hash: 09b6fc64bc48ca2e73803bef704eae83
humanhash: alanine-illinois-gee-earth
File name:Purchase Inquiry_pdf.exe
Download: download sample
Signature AsyncRAT
File size:385'024 bytes
First seen:2022-08-16 11:24:27 UTC
Last seen:2022-09-07 09:44:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:KUhK5Rb0enxvo8qaPvf99PozNLEgA3yAkPTWCB4lq:Kz5Rbl2IyhLZA3VCqW4lq
TLSH T18A84D170AE97A459C0FE47F5391AA2038FEE2DED18B9C352213173391EF179C8956271
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 f0cc96e8cce8d4f0 (18 x SnakeKeylogger, 5 x Formbook, 5 x Loki)
Reporter GovCERT_CH
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
256
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Inquiry_pdf.exe
Verdict:
No threats detected
Analysis date:
2022-08-16 11:27:49 UTC
Tags:
n/a

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

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Sending an HTTP GET request
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:
AsyncRAT, 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
Deletes itself after installation
Encrypted powershell cmdline option found
Initial sample is a PE file and has a suspicious name
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
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 684765 Sample: Purchase Inquiry_pdf.exe Startdate: 16/08/2022 Architecture: WINDOWS Score: 100 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 9 other signatures 2->49 8 Purchase Inquiry_pdf.exe 15 4 2->8         started        process3 dnsIp4 37 onedrive.live.com 8->37 39 l-0004.l-dc-msedge.net 8->39 41 3 other IPs or domains 8->41 31 C:\Users\...\Purchase Inquiry_pdf.exe.log, ASCII 8->31 dropped 53 Encrypted powershell cmdline option found 8->53 55 Injects a PE file into a foreign processes 8->55 13 Purchase Inquiry_pdf.exe 8->13         started        16 powershell.exe 17 8->16         started        18 Purchase Inquiry_pdf.exe 8->18         started        20 Purchase Inquiry_pdf.exe 8->20         started        file5 signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 13->63 65 Maps a DLL or memory area into another process 13->65 67 Sample uses process hollowing technique 13->67 69 Queues an APC in another process (thread injection) 13->69 22 explorer.exe 13->22 injected 26 conhost.exe 16->26         started        process9 dnsIp10 33 www.jietu2022071.com 38.54.23.81, 80 COGENT-174US United States 22->33 35 www.support-appamazonlog.com 22->35 51 System process connects to network (likely due to code injection or exploit) 22->51 28 raserver.exe 22->28         started        signatures11 process12 signatures13 57 Deletes itself after installation 28->57 59 Modifies the context of a thread in another process (thread injection) 28->59 61 Maps a DLL or memory area into another process 28->61
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2022-08-16 02:28:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook masslogger
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
4d46c030f172cbb13bd32d5b840491ed48525010216616591c1cd041b9cb3eea
MD5 hash:
09b6fc64bc48ca2e73803bef704eae83
SHA1 hash:
af7d347366773b9fe16f8fadf5e3100f78b00707
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

AsyncRAT

Executable exe 4d46c030f172cbb13bd32d5b840491ed48525010216616591c1cd041b9cb3eea

(this sample)

  
Delivery method
Distributed via e-mail attachment

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