MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b7afa2a07f65c2cb04454ba72f066bdc4daf640ad3b75cfac5fe82eed6c2c76. 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: 10


Intelligence 10 IOCs 1 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b7afa2a07f65c2cb04454ba72f066bdc4daf640ad3b75cfac5fe82eed6c2c76
SHA3-384 hash: e9ecf078f5ca97d06a11f939ced065ee93120125142cbb1a3bb4c8070c46e782ebb7f6d6bedc03d61e9bdec1ec8a8e6e
SHA1 hash: 82c77922fcb35f1f09b5b608d1b99e864ea1e490
MD5 hash: 12a84a5672e0d3de7e8f4d9d5e6a18c1
humanhash: december-fifteen-mars-video
File name:ORDER-331.xls.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:435'200 bytes
First seen:2021-03-31 06:13:33 UTC
Last seen:2021-03-31 06:50:07 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 768:anG/3vM02ZZgBEXzZwAkCcfPzuZwJniNeSg7FpIfSrWwmiuXbhdAB5r:ldyXzqAkCcfPzuu9p8YWw2ddAB
Threatray 836 similar samples on MalwareBazaar
TLSH 8194E311E99C5809FC061F3928E17AB902525C9188E2E6EDB78D33ADE1753F3D47F928
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
46.243.221.41:2703

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
46.243.221.41:2703 https://threatfox.abuse.ch/ioc/6194/

Intelligence

File Origin
# of uploads :
2
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ORDER-331.xls.exe
Verdict:
Malicious activity
Analysis date:
2021-03-31 06:19:16 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8217e2d7-8204-49b6-b190-5f8fc3857fe9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/129134/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader38.19042.18129.28662.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a file
Moving a recently created file
Using the Windows Management Instrumentation requests
Creating a window
Sending a UDP request
Sending an HTTP GET request 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:
Unknown
Detection:
malicious
Classification:
evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/660083
Signature
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Uses an obfuscated file name to hide its real file extension (double extension)
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1b7afa2a07f65c2cb04454ba72f066bdc4daf640ad3b75cfac5fe82eed6c2c76/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2021-03-31 06:14:07 UTC
AV detection:
9 of 46 (19.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dn5pukqh6zoczmceks5hf4dgxxcnv5savu5xlt5ml7uc53lmfr3a._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
2c8c5c5e5990da4a2af218cfece6afda3f4830be6605b9767adbfbde2e5cd276
AsyncRAT
37b842cb5ad7a0ce19bd735e14bfd35f2d0708d396dbdf56b32c79448bbbef3a
AsyncRAT
580b46d3c66531c7398e60857e6d5177d500d75cc802ded85965e0c2a09e255c
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73ffaa868244eb4bcee7027ce57d30e604dda4dcda00fcfcbfb43103909ea52b
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7fa47492c2377042d9b56f5d81c5e342aced8f51ca4237c9cd228d9b13b3bca5
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867eb496d9f6122024560c00e0a2fde238fed90558dd0b4b838047c8eed8196c
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86b22d8497ac1df55b76bddca6c021ec4b9995b00caea5effeeffe4e9f592e44
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8dd3b9fb0158903433d23f879d07820b8110a4b6417f3deda72342c2f698384e
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b5c98bb2d9391ffb93eea1ff796c1c924493c8e58160278c4ffe7ed3ba234ed2
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bcfcc5a278671fbe1b5f5f27c6d61921add83e57a0c61f80a165455b3fe0875a
AsyncRAT
+ 826 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat evasion rat trojan
Link:
https://tria.ge/reports/210331-vfwje5xvjn/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Loads dropped DLL
Windows security modification
Executes dropped EXE
Looks for VMWare Tools registry key
Async RAT payload
Looks for VirtualBox Guest Additions in registry
Nirsoft
AsyncRat
Modifies Windows Defender Real-time Protection settings
Turns off Windows Defender SpyNet reporting
Windows security bypass
Malware Config
C2 Extraction:
chongmei33.publicvm.com:2703
chongmei33.publicvm.com:49746
chongmei33.publicvm.com:49703
chongmei33.publicvm.com:46943
185.165.153.116:2703
185.165.153.116:49746
185.165.153.116:49703
185.165.153.116:46943
54.37.36.116:2703
54.37.36.116:49746
54.37.36.116:49703
54.37.36.116:46943
185.244.30.92:2703
185.244.30.92:49746
185.244.30.92:49703
185.244.30.92:46943
dongreg202020.duckdns.org:2703
dongreg202020.duckdns.org:49746
dongreg202020.duckdns.org:49703
dongreg202020.duckdns.org:46943
178.33.222.241:2703
178.33.222.241:49746
178.33.222.241:49703
178.33.222.241:46943
rahim321.duckdns.org:2703
rahim321.duckdns.org:49746
rahim321.duckdns.org:49703
rahim321.duckdns.org:46943
79.134.225.92:2703
79.134.225.92:49746
79.134.225.92:49703
79.134.225.92:46943
37.120.208.36:2703
37.120.208.36:49746
37.120.208.36:49703
37.120.208.36:46943
178.33.222.243:2703
178.33.222.243:49746
178.33.222.243:49703
178.33.222.243:46943
87.98.245.48:2703
87.98.245.48:49746
87.98.245.48:49703
87.98.245.48:46943
Unpacked files
SH256 hash:
1b7afa2a07f65c2cb04454ba72f066bdc4daf640ad3b75cfac5fe82eed6c2c76
MD5 hash:
12a84a5672e0d3de7e8f4d9d5e6a18c1
SHA1 hash:
82c77922fcb35f1f09b5b608d1b99e864ea1e490
Link:
https://www.unpac.me/results/47a107c5-f8ef-40f2-bc2b-580105b58dcc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/1b7afa2a07f65c2cb04454ba72f066bdc4daf640ad3b75cfac5fe82eed6c2c76

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:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Cape
Cape
https://www.capesandbox.com/analysis/129134/

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