MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a445fedd39770b68dc737401c065552adc66c61c16cdf9eefca61cf686ea7a41. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a445fedd39770b68dc737401c065552adc66c61c16cdf9eefca61cf686ea7a41
SHA3-384 hash: 22550360c8bcc4e27f8b8e837e571d67d15845b58106c93ec32402f11919db1f9913fae0f176abedbad6a08daa7b33e9
SHA1 hash: 694f87238d815a90b47deff6266e0458726ec3c0
MD5 hash: 5d72368893f7ff5d13f8c9908dcf3717
humanhash: violet-ack-paris-uniform
File name:New PO.pdf.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:556'544 bytes
First seen:2022-06-09 11:45:46 UTC
Last seen:2022-06-09 12:49:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Ow9C8+jXbW9qT9q0FHZEPhabY66MD6SZKK:OwlCXKOnlSd66UK
TLSH T126C41214B1ED26C0E23A17B50C063143C2A199164D7ADF3FEE4066CFABDEBCA926F515
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)
Reporter GovCERT_CH
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
282
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
New PO.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-06-09 11:49:51 UTC
Tags:
asyncrat trojan rat
Link:
https://app.any.run/tasks/2a573854-382d-42c8-8947-e0921fef5250

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/278262/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.AgentTesla.SIFA.MTB.11699.26460.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62a1ddba4c4e28fcf3badb78/reports/808e7404-5989-4f19-8b6c-d49a5a612467/overview
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.
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a59923d8-efdd-4044-8cdc-d24bba9fbf45
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1009952
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 642449 Sample: New PO.pdf.exe Startdate: 09/06/2022 Architecture: WINDOWS Score: 100 71 Snort IDS alert for network traffic 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 Multi AV Scanner detection for dropped file 2->75 77 13 other signatures 2->77 10 New PO.pdf.exe 7 2->10         started        process3 file4 55 C:\Users\user\AppData\...\ZxscnddwDHrd.exe, PE32 10->55 dropped 57 C:\Users\...\ZxscnddwDHrd.exe:Zone.Identifier, ASCII 10->57 dropped 59 C:\Users\user\AppData\Local\...\tmpB797.tmp, XML 10->59 dropped 61 C:\Users\user\AppData\...61ew PO.pdf.exe.log, ASCII 10->61 dropped 81 Adds a directory exclusion to Windows Defender 10->81 83 Injects a PE file into a foreign processes 10->83 14 New PO.pdf.exe 6 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 file7 63 C:\Users\user\AppData\Roaming\images.exe, PE32 14->63 dropped 21 cmd.exe 14->21         started        23 cmd.exe 1 14->23         started        25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 process9 29 images.exe 21->29         started        33 conhost.exe 21->33         started        35 timeout.exe 21->35         started        37 conhost.exe 23->37         started        39 schtasks.exe 23->39         started        dnsIp10 69 192.168.2.1 unknown unknown 29->69 85 Multi AV Scanner detection for dropped file 29->85 87 Machine Learning detection for dropped file 29->87 89 Adds a directory exclusion to Windows Defender 29->89 91 Injects a PE file into a foreign processes 29->91 41 images.exe 29->41         started        45 powershell.exe 29->45         started        47 schtasks.exe 29->47         started        49 images.exe 29->49         started        signatures11 process12 dnsIp13 65 91.192.100.7, 49774, 49829, 8282 AS-SOFTPLUSCH Switzerland 41->65 67 192.168.2.3, 137, 138, 443 unknown unknown 41->67 79 Tries to harvest and steal browser information (history, passwords, etc) 41->79 51 conhost.exe 45->51         started        53 conhost.exe 47->53         started        signatures14 process15
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a445fedd39770b68dc737401c065552adc66c61c16cdf9eefca61cf686ea7a41/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-09 11:12:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
19 of 40 (47.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=urc75xjzo4fwrxdtoqa4azkvflognrq4c3g7t3x4uyopnbxkpjaq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:eloasync rat spyware stealer suricata
Link:
https://tria.ge/reports/220609-nxa2zsffgl/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Async RAT payload
AsyncRat
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
Malware Config
C2 Extraction:
91.192.100.7:8282
Unpacked files
SH256 hash:
f504059b15fe7808669b5f659c29793f4f869b61a9ec1194c44e388a89898163
MD5 hash:
ac917bf4dfd22ffab0e373e32ae545c8
SHA1 hash:
c221644ce0df4ec8c9dc2aa2ca8ec5a666a22c6e
Link:
https://www.unpac.me/results/585af56c-77ea-4f75-bb90-66dfa7a4cde6/
SH256 hash:
758c886efc1b0aac030bf5a3edd28f9d6fa0f0f3aea000be737e95f32a5d2176
MD5 hash:
2e04135a595ad75bcb20358124e086f7
SHA1 hash:
a781b6607790fa4ff6a21e809d2f24906f20498c
Link:
https://www.unpac.me/results/585af56c-77ea-4f75-bb90-66dfa7a4cde6/
SH256 hash:
4b3059a1fcd6c58c7fc4e574766133e89e95cb0fe6631b7f4aee664370c2571d
MD5 hash:
97f6ddc9c7e648e589849d8d6466bc18
SHA1 hash:
1104888244c872d5726728e0cb05ae6edaabf2bf
Link:
https://www.unpac.me/results/585af56c-77ea-4f75-bb90-66dfa7a4cde6/
SH256 hash:
1825f812012cfce3edd06a8b5d1869c70a45d71cbc8010d813c7f33734108242
MD5 hash:
b82bac92de4a6f0592cb3fd5026f114c
SHA1 hash:
0fb5e3905ed1843216a9a94277925973e47d4544
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/585af56c-77ea-4f75-bb90-66dfa7a4cde6/
Parent samples :
234f42279e4494e1fe592d5b7ee4b2722fc885d18b6d7878f079e01bb0e123fe
cd470b6e8b2d870b614d3e481406039d2f0b5cec27ed8427b76fba09f4fa692d
a445fedd39770b68dc737401c065552adc66c61c16cdf9eefca61cf686ea7a41
7e78a34550234b3ccd5a7a9a98dc5c123ecad7c06e42f03a89e1faa396d2384f
5b682f3038aea6c3db35ba85a82712a1920adddd5587777742ca711dcd729757
3f140dbc69924c00d56b0797cd7cc50aceea1bf858bbadc05dab6f7ede11821c
3b51dc9ecd141fd30a12ab8a0d4a10bb3b50ec28a80ee64cfc736ca8dd2ba7e2
33910338115a8da407e1a15477e593b07fc645ef619a787bbb51ee77906c6e4c
SH256 hash:
a445fedd39770b68dc737401c065552adc66c61c16cdf9eefca61cf686ea7a41
MD5 hash:
5d72368893f7ff5d13f8c9908dcf3717
SHA1 hash:
694f87238d815a90b47deff6266e0458726ec3c0
Link:
https://www.unpac.me/results/585af56c-77ea-4f75-bb90-66dfa7a4cde6/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a445fedd3977/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a445fedd39770b68dc737401c065552adc66c61c16cdf9eefca61cf686ea7a41

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 a445fedd39770b68dc737401c065552adc66c61c16cdf9eefca61cf686ea7a41

(this sample)

  
Dropped by
AsyncRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/278262/

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