MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a795b61061d87a5f65f45399e9ac79d6ae79eecc5e90ddf780fef895c5f4c38. 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: 16


Intelligence 16 IOCs 1 YARA 7 File information Comments

SHA256 hash: 5a795b61061d87a5f65f45399e9ac79d6ae79eecc5e90ddf780fef895c5f4c38
SHA3-384 hash: 9708807b8b687544f59cf47e9916f8a82ca9fb36a585572f5f3a9b366e824a79314ce766fcf8a55ba080845acebec3ee
SHA1 hash: 5fc2d7c7881feef084b7e2b41ac1bc58e056517d
MD5 hash: b7ac251f1f64b310afcab4a04df540e2
humanhash: cardinal-minnesota-alabama-iowa
File name:b7ac251f1f64b310afcab4a04df540e2.exe
Download: download sample
Signature AsyncRAT
File size:226'304 bytes
First seen:2021-12-26 12:16:18 UTC
Last seen:2021-12-26 13:46:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:cFK7hEnUm3rvWd5Kajs+GXvJUIas8KsLq33c:cQEndT+GhUrpSc
Threatray 2'678 similar samples on MalwareBazaar
TLSH T1C124F15463EC433AE5FB2BB51472A2B013F27D22A878E30D5CD7B5C9652BB085A01B73
File icon (PE):PE icon
dhash icon c9988c868484c46c (1 x AsyncRAT)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
104.249.62.71:4211

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
104.249.62.71:4211 https://threatfox.abuse.ch/ioc/287786/

Intelligence


File Origin
# of uploads :
2
# of downloads :
323
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b7ac251f1f64b310afcab4a04df540e2.exe
Verdict:
Malicious activity
Analysis date:
2021-12-26 12:19:51 UTC
Tags:
trojan rat asyncrat

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

Behaviour
Searching for the window
Creating a window
DNS request
Сreating synchronization primitives
Unauthorized injection to a recently created process
Creating a file
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Launching a process
Creating a process from a recently created file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
asyncrat obfuscated packed wacatac
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:
100 / 100
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected AsyncRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 545410 Sample: ZkYE269MgX.exe Startdate: 26/12/2021 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 7 other signatures 2->51 8 ZkYE269MgX.exe 3 2->8         started        12 DriiveUpdta.exe 2 2->12         started        process3 file4 37 C:\Users\user\AppData\...\ZkYE269MgX.exe.log, ASCII 8->37 dropped 55 Injects a PE file into a foreign processes 8->55 14 ZkYE269MgX.exe 6 8->14         started        57 Multi AV Scanner detection for dropped file 12->57 59 Machine Learning detection for dropped file 12->59 17 DriiveUpdta.exe 2 12->17         started        20 DriiveUpdta.exe 12->20         started        signatures5 process6 dnsIp7 39 C:\Users\user\AppData\...\DriiveUpdta.exe, PE32 14->39 dropped 22 cmd.exe 1 14->22         started        25 cmd.exe 1 14->25         started        41 strekhost2028.duckdns.org 104.249.62.71, 4211, 49748 TIER-NETUS United States 17->41 43 192.168.2.1 unknown unknown 17->43 file8 process9 signatures10 53 Uses schtasks.exe or at.exe to add and modify task schedules 22->53 27 conhost.exe 22->27         started        29 schtasks.exe 1 22->29         started        31 DriiveUpdta.exe 3 25->31         started        33 conhost.exe 25->33         started        35 timeout.exe 1 25->35         started        process11
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-12-24 04:17:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
24 of 43 (55.81%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat rat suricata
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
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
Unpacked files
SH256 hash:
4eb10868ea6df1c81b1728348c06305b55eeb0e8541aeb9f048964c1c3d1619b
MD5 hash:
ec404123371a32de5554905feed3a36e
SHA1 hash:
ca25e250ba02e763bdd333fbfcf975ecb76f3ac9
SH256 hash:
637df49141c577da5c35840fa2de74fb0559057f1bfcfa78d7f59eb86b7ba3ad
MD5 hash:
e1a2f4ec649b86a21cc36a85809de0c2
SHA1 hash:
de0159b1b5bd7653a5024696fd30eb020252736b
SH256 hash:
3512ecfe478bcd5467a05bc326e1f97ec83971898957d2169b2e7d5aabf42197
MD5 hash:
caa8a0859539e0e04091b8e60d0c6519
SHA1 hash:
dda14f88c3827ee93708ec22a73ce773543c1f4b
Detections:
win_asyncrat_w0
SH256 hash:
5a795b61061d87a5f65f45399e9ac79d6ae79eecc5e90ddf780fef895c5f4c38
MD5 hash:
b7ac251f1f64b310afcab4a04df540e2
SHA1 hash:
5fc2d7c7881feef084b7e2b41ac1bc58e056517d
Malware family:
AsyncRAT
Verdict:
Malicious
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
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
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
Rule name:win_asyncrat_j1
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
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.

Comments