MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b72ff8d76f6f5a17b4fc6f223708dcfb18a8635e6331281441bb86aac25b3c0. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b72ff8d76f6f5a17b4fc6f223708dcfb18a8635e6331281441bb86aac25b3c0
SHA3-384 hash: f78bd082a92959da75a26bbbfabd134afdaa34ed6cf68a419382e2d480849224ce5cce4840e70420a808d44f024537f7
SHA1 hash: 04c8859601e3d1269df0788d5e72e2ab44e4b0cd
MD5 hash: 5344bd80b090cc4ec04707413c5b0566
humanhash: south-bakerloo-solar-lemon
File name:Nueva orden #7624.xls.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:585'216 bytes
First seen:2021-10-11 17:56:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:qHg4ohvg6P6MV6Uq1l9W+OJz921AsOjzl0nHPvbile48o4aaTU23RZlmWYRX4h:O4hvkUi0JEvvit7aTUG7lmXRI
Threatray 2'123 similar samples on MalwareBazaar
TLSH T1A9C4AF243DFA4059F373AF366ED6B15D9F6EBE722603841E2152734A0632A818DE153F
Reporter GovCERT_CH
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
256
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Nueva orden #7624.xls.exe
Verdict:
Malicious activity
Analysis date:
2021-10-11 18:04:46 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/fbf2e4c8-60d5-472d-b229-102f91f54793

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/196702/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25-2.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61647aeffd35fe780c3890ce/reports/92522b96-cefb-48c0-b80c-76cccf011f9c/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/18a055ed-649a-4ddd-97f1-6be9321fdd0f
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/867748
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Injects a PE file into a foreign processes
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Double Extension
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)
Tries to harvest and steal browser information (history, passwords, etc)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 500176 Sample: Nueva orden #7624.xls.exe Startdate: 11/10/2021 Architecture: WINDOWS Score: 100 59 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->59 61 Yara detected AntiVM3 2->61 63 Yara detected AsyncRAT 2->63 65 10 other signatures 2->65 8 windows update.exe 4 2->8         started        11 Nueva orden #7624.xls.exe 7 2->11         started        process3 file4 67 Adds a directory exclusion to Windows Defender 8->67 69 Injects a PE file into a foreign processes 8->69 14 windows update.exe 8->14         started        18 powershell.exe 8->18         started        20 schtasks.exe 8->20         started        53 C:\Users\user\AppData\Local\...\tmpCA86.tmp, XML 11->53 dropped 55 C:\Users\user\AppData\Roaming\LvKkYVdIg.exe, PE32 11->55 dropped 22 Nueva orden #7624.xls.exe 6 11->22         started        25 powershell.exe 21 11->25         started        27 schtasks.exe 1 11->27         started        signatures5 process6 dnsIp7 57 185.19.85.136, 49762, 49815, 6060 DATAWIRE-ASCH Switzerland 14->57 71 Tries to harvest and steal browser information (history, passwords, etc) 14->71 29 conhost.exe 18->29         started        31 conhost.exe 20->31         started        51 C:\Users\user\AppData\...\windows update.exe, PE32 22->51 dropped 33 cmd.exe 1 22->33         started        35 cmd.exe 1 22->35         started        37 conhost.exe 25->37         started        39 conhost.exe 27->39         started        file8 signatures9 process10 process11 41 conhost.exe 33->41         started        43 timeout.exe 1 33->43         started        45 windows update.exe 33->45         started        47 conhost.exe 35->47         started        49 schtasks.exe 1 35->49         started       
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1b72ff8d76f6f5a17b4fc6f223708dcfb18a8635e6331281441bb86aac25b3c0/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-10-11 17:57:09 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dnzp7dlw6322c62py3zcg4enz6yyvbrv4yzrfakedo4gvlbfwpaa._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
0b8a5cbe236a7057a2904f18480b85ce9b59b891c0a1a041516248d35760744d
AsyncRAT
1299373ec40fc1f3f16957338574a9ad51a94e62220cc8c08f1ad81dee443544
AsyncRAT
16fc0cec13d88da3d0a36e4c42e733db8f1e21cafc18fd813a25cd0bc835f35a
AsyncRAT
1b7d7515f98891cf08164a7469bb9c9f3133e7834cfe99d55094594ca330e982
AsyncRAT
213528a5164fcb5253010129aac3855b4b905c9c5a9514a2a2b9db7e2b592a73
AsyncRAT
438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49
AsyncRAT
a4df5e9015f70b47dc4f2e6bae0fbeb9d108979e0cda7ef54aa123a0d33bdf8b
AsyncRAT
bcf7571a4d9b25fabdc2d6120b1b2d7bd8446ea2bc3a5da1d4127954920067de
AsyncRAT
ceddcfa72226e91f7435facafe6631d1385ca4d246d242d5136ac4e9462b8611
AsyncRAT
ecb8839117d73d33390c84f7f6e02f4970156ccb2da7b48083922f60625fa8be
AsyncRAT
+ 2'113 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat evasion rat spyware stealer
Link:
https://tria.ge/reports/211011-wjkm9shgc6/
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
Maps connected drives based on registry
Checks BIOS information in registry
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Looks for VMWare Tools registry key
Async RAT payload
Looks for VirtualBox Guest Additions in registry
AsyncRat
Unpacked files
SH256 hash:
e61699d91a73de4b99025e61c6dd0f9e83223dd7fa7d350f8321a54ec3379c1d
MD5 hash:
18e0656f8cd60573f52e5d51e45c3757
SHA1 hash:
5dd55d1f9144e3ce4ed46e64891bfd4cbdf00f98
Link:
https://www.unpac.me/results/6ee08912-6e13-4286-beaa-ccc1cbf22ade/
SH256 hash:
5aca65d0bd8e958a8bdac2a0886fa83846f7166d67974426536f2ce2dde3060b
MD5 hash:
55b852d53fdaa26c886ebab628216e11
SHA1 hash:
457e212ff382b3d16dc2d180302b1f43c5a64b65
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/6ee08912-6e13-4286-beaa-ccc1cbf22ade/
Parent samples :
548baf5fc40e5e46c57749de488fa6a82f466880c201a2f6625e20ace8efb138
1b72ff8d76f6f5a17b4fc6f223708dcfb18a8635e6331281441bb86aac25b3c0
58cac4ef6c2a2c25e3a50ea093f3bc90933f046f76c14235b70cf6caf1bfd9ca
af6a983fddf6bcb3a4fdf93ad8ff0fb48e893bd11e4e4c5d2412e68c98f03b54
SH256 hash:
d434e7cb4105d7e760a39a1a8a1306338b00fbd6507025d53e4c44ede73d3788
MD5 hash:
6613b992e916924c3f38a179bb9866ab
SHA1 hash:
cd5741f4d0a4685c5fd9c9e2e708bbf33ec1691a
Link:
https://www.unpac.me/results/6ee08912-6e13-4286-beaa-ccc1cbf22ade/
SH256 hash:
1b72ff8d76f6f5a17b4fc6f223708dcfb18a8635e6331281441bb86aac25b3c0
MD5 hash:
5344bd80b090cc4ec04707413c5b0566
SHA1 hash:
04c8859601e3d1269df0788d5e72e2ab44e4b0cd
Link:
https://www.unpac.me/results/6ee08912-6e13-4286-beaa-ccc1cbf22ade/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1b72ff8d76f6/report/overview.html
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/1b72ff8d76f6f5a17b4fc6f223708dcfb18a8635e6331281441bb86aac25b3c0

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AsyncRAT

Executable exe 1b72ff8d76f6f5a17b4fc6f223708dcfb18a8635e6331281441bb86aac25b3c0

(this sample)

  
Dropped by
AsyncRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/196702/

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