MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40773de06176ad60a969f29e1034064ea20c67192922285319045afc91b6c3e0. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
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SHA256 hash: 40773de06176ad60a969f29e1034064ea20c67192922285319045afc91b6c3e0
SHA3-384 hash: dc178bc2e968e85b4fa55a30121618818d558c293012c38e90f0ee964735e72764f6f427db168775065a63711d411c07
SHA1 hash: 440ac343d0692394663b2bb88c686c6381d4a8fc
MD5 hash: 57b6df6c7734f3137ef83d57855c82ba
humanhash: december-saturn-nuts-salami
File name:57b6df6c7734f3137ef83d57855c82ba.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:725'504 bytes
First seen:2020-11-09 13:41:16 UTC
Last seen:2020-11-12 14:24:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:luEEVNe+OR982HnQXHzjhVa2KLM5Z895mo1hMH6FpfMH:8TG5S4fa
Threatray 442 similar samples on MalwareBazaar
TLSH 4AF4158C14AA338AD07333AE5774348183B9EA5772E9C9D3029CBBB1EE9DC355771A05
Reporter abuse_ch
Tags:AsyncRAT exe nVpn RAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.DownLoader35.24609.497.967.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
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
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Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/526406
Signature
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 312290 Sample: 7ooCSar7ht.exe Startdate: 09/11/2020 Architecture: WINDOWS Score: 80 33 Multi AV Scanner detection for dropped file 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 Yara detected AsyncRAT 2->37 39 3 other signatures 2->39 6 7ooCSar7ht.exe 1 6 2->6         started        10 cabvlc.exe 3 2->10         started        12 cabvlc.exe 2 2->12         started        process3 file4 23 C:\Users\user\AppData\Roaming\...\cabvlc.exe, PE32 6->23 dropped 25 C:\Users\user\...\cabvlc.exe:Zone.Identifier, ASCII 6->25 dropped 27 C:\Users\user\AppData\...\7ooCSar7ht.exe.log, ASCII 6->27 dropped 41 Injects a PE file into a foreign processes 6->41 14 7ooCSar7ht.exe 2 6->14         started        17 cabvlc.exe 2 10->17         started        19 cabvlc.exe 10->19         started        21 cabvlc.exe 2 12->21         started        signatures5 process6 dnsIp7 29 agentttt.ac.ug 79.134.225.40, 6970 FINK-TELECOM-SERVICESCH Switzerland 14->29 31 agentpurple.ac.ug 14->31
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40773de06176ad60a969f29e1034064ea20c67192922285319045afc91b6c3e0/
Threat name:
ByteCode-MSIL.Trojan.Azorult
Create hunting rule
Status:
Malicious
First seen:
2020-11-09 13:43:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ib3t3ydbo2wwbklj6kpbanagj2rayzyzfercquyzarnpzenwypqa._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
069efca4cc4e595e2b253a909aacc04bed8900d09fc0b27dd357c76ad716a30f
AsyncRAT
307f004326e684ce02104a8da2db8f3cfa93c4e1ab2d7da025204430d677f75d
AsyncRAT
36827765c6b9ca4c6f26e04535b49f85c2b06e37c0efdb46e1bfe2339f3b48a4
AsyncRAT
59a7beab1c7583b7995b157e9e87beb6fa0785c49784bf0b9d13bd143a696541
AsyncRAT
7216531f7bdf08e92cf69d0754b27da97d716c62ec5294fa03ccebb7e652bfdb
AsyncRAT
82426d67e219a1d9ac41d9bd9e3d4a74beb90472176320a5ace56d295ce3dd9c
AsyncRAT
bcb474ac919440674135c673d8c6a0fc8015a63a15b2849c3346f74a716b5249
AsyncRAT
c9c5b4b76ac69632d5f5931198adb5d21d214c72d8524ffc60d7d6bbcd44cf03
AsyncRAT
f0006754d451556014c91039915ea9505f348f80538e536d30b75c5ef252d73d
AsyncRAT
f7abe8ac17eeb167397ef57dea132a9dfdab1b6dfc0e588fd2b2554410258dfc
AsyncRAT
+ 432 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat persistence rat
Link:
https://tria.ge/reports/201109-9m8pcdgjd2/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
agentttt.ac.ug:6970
agentpurple.ac.ug:6970
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:asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:Reverse_text_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Reverse text detected
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research

File information

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

Web download

AsyncRAT

Executable exe 40773de06176ad60a969f29e1034064ea20c67192922285319045afc91b6c3e0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/446461/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/572753/
  
URLhaus
https://urlhaus.abuse.ch/url/439781/
  
URLhaus
https://urlhaus.abuse.ch/url/572764/
  
URLhaus
https://urlhaus.abuse.ch/url/686539/

Comments