MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3cf3dd42d45a2a4066e2102230b94a085649757a06da3fdeef2bf0eb56855ef. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d3cf3dd42d45a2a4066e2102230b94a085649757a06da3fdeef2bf0eb56855ef
SHA3-384 hash: 8e3395311303326fb8d9fc029e80889fbae4b8397e0fdf29c0512db8bb32b9898c277900c372603700cb21f2121991ec
SHA1 hash: 55c721bd510cae9e370d17e9e793f964dc24ebbb
MD5 hash: f39eb3daab64ea1bef341de019420d03
humanhash: nine-grey-potato-skylark
File name:f39eb3daab64ea1bef341de019420d03.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:471'040 bytes
First seen:2020-10-27 15:06:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:zylI6Pm+JjdaRj/1Fk6f3gZhN2sAsGJqkOc1/WjS7iB7A:zyaJNFh3gVdAcOKS8
Threatray 398 similar samples on MalwareBazaar
TLSH 2CA41D7C6E8526E76273E676A1F50683FEE8608673B84D4B11C327492D4AF023E9734D
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79984/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/513884
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Injects a PE file into a foreign processes
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 dnsIp2 2 Behavior Graph ID: 306067 Sample: QNb4PR5i0p.exe Startdate: 27/10/2020 Architecture: WINDOWS Score: 92 26 agentttt.ac.ug 2->26 34 Antivirus detection for dropped file 2->34 36 Antivirus / Scanner detection for submitted sample 2->36 38 Multi AV Scanner detection for dropped file 2->38 40 4 other signatures 2->40 7 QNb4PR5i0p.exe 1 4 2->7         started        11 dcalc.exe 1 2->11         started        13 dcalc.exe 2->13         started        signatures3 process4 file5 24 C:\Users\user\AppData\Roaming\...\dcalc.exe, PE32 7->24 dropped 42 Injects a PE file into a foreign processes 7->42 15 QNb4PR5i0p.exe 2 7->15         started        18 QNb4PR5i0p.exe 7->18         started        20 dcalc.exe 2 11->20         started        22 dcalc.exe 2 13->22         started        signatures6 process7 dnsIp8 28 agentttt.ac.ug 79.134.225.40, 49726, 49733, 49741 FINK-TELECOM-SERVICESCH Switzerland 15->28 30 192.168.2.1 unknown unknown 15->30 32 agentpurple.ac.ug 15->32
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d3cf3dd42d45a2a4066e2102230b94a085649757a06da3fdeef2bf0eb56855ef/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2020-10-26 23:17:29 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2pht3vbniwrkibtoeebcgc4uuccwjf2xubw2h7po6k7q5nlikxxq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
430bbefe89bad382de0a7831e7afc238f397a930a235d208585fb2bfb0b950bc
AsyncRAT
7caf87ac1666f10cbbff4cc01d51ec4df556908b2d8d55d5c4f0f3724dceded1
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a4df5e9015f70b47dc4f2e6bae0fbeb9d108979e0cda7ef54aa123a0d33bdf8b
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bcb474ac919440674135c673d8c6a0fc8015a63a15b2849c3346f74a716b5249
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c8cc7c1a1210a082960b929c3598521979e16c1c6f5626b8ad29b9618ab5e18c
AsyncRAT
c9c5b4b76ac69632d5f5931198adb5d21d214c72d8524ffc60d7d6bbcd44cf03
AsyncRAT
d82330b1d9bfbebbff4d21e9ddd0f86e90ed27031ba29557587d182246301ee5
AsyncRAT
d90bd5fe1ea6c9d3435e443b030981e2a4842d41b08cb39fc293ba4ea9ad1c9c
AsyncRAT
f0006754d451556014c91039915ea9505f348f80538e536d30b75c5ef252d73d
AsyncRAT
f9cff9e6050b1536e55014e7eafdc8827fb237e9235ff60265c5d1afaa5d5e6e
AsyncRAT
+ 388 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat persistence rat
Link:
https://tria.ge/reports/201027-8z1vv16h9j/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
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.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d3cf3dd42d45a2a4066e2102230b94a085649757a06da3fdeef2bf0eb56855ef

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 d3cf3dd42d45a2a4066e2102230b94a085649757a06da3fdeef2bf0eb56855ef

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/79984/
  
URLhaus
https://urlhaus.abuse.ch/url/446461/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/439781/
  
URLhaus
https://urlhaus.abuse.ch/url/572753/
  
URLhaus
https://urlhaus.abuse.ch/url/686539/
  
URLhaus
https://urlhaus.abuse.ch/url/572764/

Comments