MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 866ac65940057d6e1a125eda23a12d6743d75e6ff3a74ff6d53debb3fe90a368. 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: 12


Intelligence 12 IOCs 1 YARA 4 File information Comments

SHA256 hash: 866ac65940057d6e1a125eda23a12d6743d75e6ff3a74ff6d53debb3fe90a368
SHA3-384 hash: 0cb120566d51b5d66c4618ef0c95ceb74f61be8d29533825bb65c948a566afddd5c52c79f7ce9e944ac162e96b5aaa67
SHA1 hash: c0fa652bb151644bf76b55f3c9d68cb5e8d7faf3
MD5 hash: 8a2abab20bf75ac19eaa73be3b09219d
humanhash: charlie-fillet-fix-beryllium
File name:8a2abab20bf75ac19eaa73be3b09219d.exe
Download: download sample
Signature AsyncRAT
File size:466'688 bytes
First seen:2021-07-12 18:01:28 UTC
Last seen:2021-07-12 18:35:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:gPn4HHOqpc/Xzm9HtpiuJZoEMkEbSvxJxhF3eggJG:gPn6pc/WHtplJCDkE2/PNz
Threatray 1'326 similar samples on MalwareBazaar
TLSH T145A422AAE7208C5EFE9749B3E4BF3A1C03B4F95262D5D80F790D04538E42B599E53392
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
142.202.189.75:4040

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
142.202.189.75:4040 https://threatfox.abuse.ch/ioc/159883/

Intelligence


File Origin
# of uploads :
2
# of downloads :
148
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8a2abab20bf75ac19eaa73be3b09219d.exe
Verdict:
Malicious activity
Analysis date:
2021-07-12 18:04:43 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found malware configuration
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Used To Disable Windows Defender AV Security Monitoring
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 447498 Sample: NyMnQ1sr1D.exe Startdate: 12/07/2021 Architecture: WINDOWS Score: 92 51 Found malware configuration 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 4 other signatures 2->57 8 NyMnQ1sr1D.exe 1 8 2->8         started        12 Acrobat Reader.exe 2 2->12         started        process3 file4 41 C:\Users\user\AppData\...41yMnQ1sr1D.exe, PE32 8->41 dropped 43 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 8->43 dropped 45 C:\Users\user\AppData\Local\Adobe.exe, PE32 8->45 dropped 47 2 other malicious files 8->47 dropped 61 Creates an undocumented autostart registry key 8->61 14 NyMnQ1sr1D.exe 6 8->14         started        18 AdvancedRun.exe 1 8->18         started        20 AdvancedRun.exe 1 8->20         started        signatures5 process6 file7 49 C:\Users\user\AppData\...\Acrobat Reader.exe, PE32 14->49 dropped 63 Multi AV Scanner detection for dropped file 14->63 22 cmd.exe 1 14->22         started        25 cmd.exe 1 14->25         started        27 AdvancedRun.exe 18->27         started        29 AdvancedRun.exe 20->29         started        signatures8 process9 signatures10 59 Uses schtasks.exe or at.exe to add and modify task schedules 22->59 31 conhost.exe 22->31         started        33 schtasks.exe 1 22->33         started        35 conhost.exe 25->35         started        37 timeout.exe 1 25->37         started        39 Acrobat Reader.exe 25->39         started        process11
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Status:
Malicious
First seen:
2021-07-09 01:40:00 UTC
AV detection:
12 of 29 (41.38%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat link pdf persistence rat
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
HTTP links in PDF interactive object
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Async RAT payload
Nirsoft
AsyncRat
Modifies WinLogon for persistence
Malware Config
C2 Extraction:
sbmsbm20.duckdns.org:2020
sbmsbm20.duckdns.org:3040
sbmsbm20.duckdns.org:4040
hpdndbnb.duckdns.org:2020
hpdndbnb.duckdns.org:3040
hpdndbnb.duckdns.org:4040
Unpacked files
SH256 hash:
3da80bd8e18bf2ef5e28f5e2e0d2095b0d4e65391800ce18f9a18859d7beb220
MD5 hash:
5dbed7594d4c8d71c1882692e6776bf0
SHA1 hash:
8552a2f2afca501945fe57c1875970b6f777f709
SH256 hash:
a74e8615a4050a951edcdbbd96a3690ced54f6cd97e2bd19c7ddffd5fb58fbc7
MD5 hash:
efdaa5486145f8b9a2da5b1edd7389ae
SHA1 hash:
66e7563b7b29757d0543ea7f53c5d332048fc4d8
Detections:
win_asyncrat_w0
SH256 hash:
974aa8560eab0b1a9e8335ee10acbf1150ab7a682d040723b22050894282d296
MD5 hash:
2cdedbf2db03a19e2082689aab449392
SHA1 hash:
bae0d1a1d9d99315875f81236301e9667dd7711e
SH256 hash:
17d4cf2c2c10069f336dce09501a59032ec6f114d0983b0a3632414110f5e254
MD5 hash:
48332e0f1934924e9455587dc418ede9
SHA1 hash:
768321c65518d528ec77fd12699a804b70ff393b
SH256 hash:
866ac65940057d6e1a125eda23a12d6743d75e6ff3a74ff6d53debb3fe90a368
MD5 hash:
8a2abab20bf75ac19eaa73be3b09219d
SHA1 hash:
c0fa652bb151644bf76b55f3c9d68cb5e8d7faf3
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:INDICATOR_KB_CERT_0ddeb53f957337fbeaf98c4a615b149d
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Comments