MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 521038c254fb2368aa01c66aafdd5679227876171c7b5fbc0771839ca1977c89. 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 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 521038c254fb2368aa01c66aafdd5679227876171c7b5fbc0771839ca1977c89
SHA3-384 hash: e9898979efbc1e348ac6adb5a1574147110b8f3261097ee94fab758ab1a3d0f77a0489b6f47845bbb18a860c77f22482
SHA1 hash: 76be62834d8615966f99c33d8439a2d5b56ac215
MD5 hash: 6c14815ee1534a836b2d37f705c8d82a
humanhash: helium-harry-salami-oxygen
File name:ORDER #210 xls.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:424'448 bytes
First seen:2021-02-01 09:52:49 UTC
Last seen:2021-02-01 11:39:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 6144:Gp5j+TKI5/DX85JopC4vrFhMFNWJfGPjB1Nb3zzq5k0O2:W8eI5/DM5Jj4DzMFNWYPV1dzu60P
Threatray 576 similar samples on MalwareBazaar
TLSH 3A94E56877748F51C8351F34D0141E1D2F667E182C7EE23EA56CF299EA3B78248A5EC2
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
Malspam distributing AsyncRAT:

HELO: 66-165-231-114.static.hvvc.us
Sending IP: 66.165.231.114
From: Ishaan Ahmed <info@aibcapital.com>
Reply-To: info@alnajeh.ae
Subject: PO #201
Attachment: ORDER 201.img (contains "ORDER #210 xls.exe")

AsyncRAT C2s:
rahim321.duckdns.org (192.169.69.25)
chongmei33.publicvm.com:49746 (161.129.71.135)

Intelligence

File Origin
# of uploads :
2
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ORDER #210 xls.exe
Verdict:
Malicious activity
Analysis date:
2021-02-01 09:58:06 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f51b8857-2780-4fff-8028-a73bebc1e713

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/114463/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Sending a custom TCP request
Sending a UDP request
DNS request
Using the Windows Management Instrumentation requests
Connection attempt to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
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
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/595186
Signature
Allocates memory in foreign processes
Binary contains a suspicious time stamp
Bypasses PowerShell execution policy
Connects to many ports of the same IP (likely port scanning)
Drops PE files to the startup folder
Initial sample is a PE file and has a suspicious name
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
Powershell drops PE 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)
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 346633 Sample: ORDER #210 xls.exe Startdate: 01/02/2021 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Multi AV Scanner detection for dropped file 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 9 other signatures 2->46 7 ORDER #210 xls.exe 3 2->7         started        11 I$s#$lT3ssl.exe 3 2->11         started        process3 file4 28 C:\Users\user\...\ORDER #210 xls.exe.log, ASCII 7->28 dropped 48 Writes to foreign memory regions 7->48 50 Allocates memory in foreign processes 7->50 52 Injects a PE file into a foreign processes 7->52 13 powershell.exe 15 7->13         started        17 vbc.exe 2 7->17         started        20 powershell.exe 16 11->20         started        22 vbc.exe 3 11->22         started        signatures5 process6 dnsIp7 30 C:\Users\user\AppData\...\I$s#$lT3ssl.exe, PE32 13->30 dropped 32 C:\Users\...\I$s#$lT3ssl.exe:Zone.Identifier, ASCII 13->32 dropped 54 Drops PE files to the startup folder 13->54 56 Powershell drops PE file 13->56 24 conhost.exe 13->24         started        34 79.134.225.92, 49703, 49735 FINK-TELECOM-SERVICESCH Switzerland 17->34 36 178.33.222.241, 49714, 49733 OVHFR France 17->36 38 3 other IPs or domains 17->38 26 conhost.exe 20->26         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/521038c254fb2368aa01c66aafdd5679227876171c7b5fbc0771839ca1977c89/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2021-02-01 09:53:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kiidrqsu7mrwrkqbyzvk7xkwperhq5qxdr5v7pahogbzzimxpseq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
0a9e7542b65b3a7c5e1a11a2b23c2366fd53bff3205bb9d1656d4e32d1f0068b
AsyncRAT
2c8c5c5e5990da4a2af218cfece6afda3f4830be6605b9767adbfbde2e5cd276
AsyncRAT
395fdb688d7d8085e2636fb26e7e4d5004ae3ec20db26edeee1e0a19d5872e07
AsyncRAT
68bf0a42854ac13fe13a75bb213f51934a3edc0fa7a0732ddb12a68699619474
AsyncRAT
867eb496d9f6122024560c00e0a2fde238fed90558dd0b4b838047c8eed8196c
AsyncRAT
8dd3b9fb0158903433d23f879d07820b8110a4b6417f3deda72342c2f698384e
AsyncRAT
b465151f3d0ce34aad5f35ff2647138b763f133e75d01336e9191185f58b0931
AsyncRAT
c853a4beac9f6fcea2bb9ad13b17eafd6605cac76899edbecd88d4f981d9f432
AsyncRAT
e452ae28b674ac4715a811e24d502948e94489ccb1ed14ca49d3ed8ab395f85c
AsyncRAT
fc926b2871dc293ad75ff0caf3863adc75b9342a34c1965c3991f512a2f666c8
AsyncRAT
+ 566 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat
Link:
https://tria.ge/reports/210201-r3e2j1m752/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Uses the VBS compiler for execution
Async RAT payload
Beds Protector Packer
AsyncRat
Malware Config
C2 Extraction:
chongmei33.publicvm.com:49746
chongmei33.publicvm.com:2703
chongmei33.publicvm.com:49714
chongmei33.publicvm.com:49703
185.165.153.116:49746
185.165.153.116:2703
185.165.153.116:49714
185.165.153.116:49703
54.37.36.116:49746
54.37.36.116:2703
54.37.36.116:49714
54.37.36.116:49703
185.244.30.92:49746
185.244.30.92:2703
185.244.30.92:49714
185.244.30.92:49703
dongreg202020.duckdns.org:49746
dongreg202020.duckdns.org:2703
dongreg202020.duckdns.org:49714
dongreg202020.duckdns.org:49703
178.33.222.241:49746
178.33.222.241:2703
178.33.222.241:49714
178.33.222.241:49703
rahim321.duckdns.org:49746
rahim321.duckdns.org:2703
rahim321.duckdns.org:49714
rahim321.duckdns.org:49703
79.134.225.92:49746
79.134.225.92:2703
79.134.225.92:49714
79.134.225.92:49703
37.120.208.36:49746
37.120.208.36:2703
37.120.208.36:49714
37.120.208.36:49703
Unpacked files
SH256 hash:
97024f17003dd3d31dab64c4d1b8251e50d428644eb59ed3692ad79ce42019cf
MD5 hash:
8cd28be4bd9a1404c6d3600db32b3ed1
SHA1 hash:
fb90b0ca51118e771390d58b19d0a404ee14cfbc
Link:
https://www.unpac.me/results/895a34e2-d67e-4a3d-97bb-128d0cff4534/
SH256 hash:
20cc4a76ef5a0268876c7b56146a8df670559d85c2fd993d0eefc4ead3cde792
MD5 hash:
f06eb45a246bdc28f3a7c7e1e1687351
SHA1 hash:
76e996b8570dff4e393c0ffbb09d7ffa86d9f1fe
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/895a34e2-d67e-4a3d-97bb-128d0cff4534/
Parent samples :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 hash:
4dbc62c36baf76515afd4293076dc25c14c2666051b7f2ae7d1b17b64dc6872c
MD5 hash:
25819c75eb4a52bf21255a0fc23e2915
SHA1 hash:
59796ea451dd7bc41c023b863ed14bb910848858
Link:
https://www.unpac.me/results/895a34e2-d67e-4a3d-97bb-128d0cff4534/
SH256 hash:
521038c254fb2368aa01c66aafdd5679227876171c7b5fbc0771839ca1977c89
MD5 hash:
6c14815ee1534a836b2d37f705c8d82a
SHA1 hash:
76be62834d8615966f99c33d8439a2d5b56ac215
Link:
https://www.unpac.me/results/895a34e2-d67e-4a3d-97bb-128d0cff4534/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/521038c254fb2368aa01c66aafdd5679227876171c7b5fbc0771839ca1977c89

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_EXE_Packed_ConfuserExMod_BedsProtector
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod Beds Protector
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.

Malspam

AsyncRAT

img c4d9dfb352915486b412a08ea0449e362bb578ef619560a766821fc6d8a36632

AsyncRAT

Executable exe 521038c254fb2368aa01c66aafdd5679227876171c7b5fbc0771839ca1977c89

(this sample)

  
Dropped by
MD5 49696324ded3cd7fc367672d295ffd2c
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 c4d9dfb352915486b412a08ea0449e362bb578ef619560a766821fc6d8a36632
Cape
Cape
https://www.capesandbox.com/analysis/114463/

Comments