MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b51dc9ecd141fd30a12ab8a0d4a10bb3b50ec28a80ee64cfc736ca8dd2ba7e2. 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 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3b51dc9ecd141fd30a12ab8a0d4a10bb3b50ec28a80ee64cfc736ca8dd2ba7e2
SHA3-384 hash: 7a16782d6132dce6dd27ec8c2388e2d577913761808a80cad0e9737f400819fb353564ef88de427a42f286a25395211a
SHA1 hash: b8ee506136aaf1237f9ad396a5f5182a880ac9ff
MD5 hash: 5f5ddb82ea65c4cce7bb2871aa752565
humanhash: eleven-stream-oklahoma-wisconsin
File name:5f5ddb82ea65c4cce7bb2871aa752565.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:837'632 bytes
First seen:2022-06-16 07:10:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:MxiYV8g46gKTdni+H0MW/IbxG2A9CdQ3:Mxjx3FrUM9Qt9CdQ3
TLSH T1E2056D4A23DC6A86ECF2073945F30BA152439336295F63CB5B162A7A472F3D86F73146
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 8898a2ac1c9486be (8 x AsyncRAT, 2 x SnakeKeylogger)
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/280554/
Detection(s):
Win.Trojan.EmbeddedDotNetBinary-9940868-0
Create hunting rule

Win.Trojan.EmbeddedReversedDLL-9940922-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Sending an HTTP GET request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a process from a recently created file
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62aad791c07f2e38a14cd8d8/reports/a0c6e112-ce70-49e6-9207-5c0381f3269c/overview
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.
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b8ca1a03-7b7b-4b63-a725-caee5dd578a4
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1014393
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 646885 Sample: SKLvY0q2nm.exe Startdate: 16/06/2022 Architecture: WINDOWS Score: 100 66 Malicious sample detected (through community Yara rule) 2->66 68 Multi AV Scanner detection for dropped file 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 8 other signatures 2->72 10 SKLvY0q2nm.exe 4 2->10         started        14 images.exe 2->14         started        process3 file4 56 C:\Users\user\AppData\Roaming\...\firefox.exe, PE32 10->56 dropped 58 C:\Users\user\...\firefox.exe:Zone.Identifier, ASCII 10->58 dropped 60 C:\Users\user\AppData\...\SKLvY0q2nm.exe.log, ASCII 10->60 dropped 78 Creates an undocumented autostart registry key 10->78 80 Writes to foreign memory regions 10->80 82 Injects a PE file into a foreign processes 10->82 16 BackgroundTransferHost.exe 13 10->16         started        18 SKLvY0q2nm.exe 6 10->18         started        21 powershell.exe 15 10->21         started        84 Multi AV Scanner detection for dropped file 14->84 86 Machine Learning detection for dropped file 14->86 88 Drops executable to a common third party application directory 14->88 23 powershell.exe 14 14->23         started        25 images.exe 14->25         started        signatures5 process6 file7 27 cmd.exe 1 16->27         started        29 cmd.exe 1 16->29         started        54 C:\Users\user\AppData\Roaming\images.exe, PE32 18->54 dropped 32 conhost.exe 21->32         started        34 conhost.exe 23->34         started        process8 signatures9 36 images.exe 1 27->36         started        39 conhost.exe 27->39         started        41 timeout.exe 1 27->41         started        90 Uses schtasks.exe or at.exe to add and modify task schedules 29->90 43 conhost.exe 29->43         started        45 schtasks.exe 1 29->45         started        process10 signatures11 74 Drops executable to a common third party application directory 36->74 76 Injects a PE file into a foreign processes 36->76 47 powershell.exe 36->47         started        49 images.exe 36->49         started        process12 dnsIp13 52 conhost.exe 47->52         started        62 91.192.100.7, 49861, 49863, 49871 AS-SOFTPLUSCH Switzerland 49->62 64 192.168.2.4, 123, 137, 138 unknown unknown 49->64 process14
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3b51dc9ecd141fd30a12ab8a0d4a10bb3b50ec28a80ee64cfc736ca8dd2ba7e2/
Threat name:
ByteCode-MSIL.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2022-06-16 07:11:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hni5zhwncqp5gcqsvofa2sqqxm5vb3bivahomth4onwkrxjlu7ra._file
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:eloasync rat
Link:
https://tria.ge/reports/220616-hzx2msgcfj/
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
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
91.192.100.7:8282
Unpacked files
SH256 hash:
9f01d9f2ed07e630ec078efa5d760762c3c8ad3b06e9e8a9062a37d63d57b026
MD5 hash:
9fbb8cec55b2115c00c0ba386c37ce62
SHA1 hash:
e2378a1c22c35e40fd1c3e19066de4e33b50f24a
Link:
https://www.unpac.me/results/7060119b-4e56-4c76-b2ce-6c3b84b4db48/
SH256 hash:
6cffe8c7652ace696b32b2620bad23157dbfe79ec54f0b6fe05f155cf242ef09
MD5 hash:
0e738f77ab9d78cb6f911e381a488d50
SHA1 hash:
2cd3e15e3d6dda550b83559beb06cfd9c55c887a
Link:
https://www.unpac.me/results/7060119b-4e56-4c76-b2ce-6c3b84b4db48/
SH256 hash:
1825f812012cfce3edd06a8b5d1869c70a45d71cbc8010d813c7f33734108242
MD5 hash:
b82bac92de4a6f0592cb3fd5026f114c
SHA1 hash:
0fb5e3905ed1843216a9a94277925973e47d4544
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/7060119b-4e56-4c76-b2ce-6c3b84b4db48/
Parent samples :
234f42279e4494e1fe592d5b7ee4b2722fc885d18b6d7878f079e01bb0e123fe
cd470b6e8b2d870b614d3e481406039d2f0b5cec27ed8427b76fba09f4fa692d
a445fedd39770b68dc737401c065552adc66c61c16cdf9eefca61cf686ea7a41
7e78a34550234b3ccd5a7a9a98dc5c123ecad7c06e42f03a89e1faa396d2384f
5b682f3038aea6c3db35ba85a82712a1920adddd5587777742ca711dcd729757
3f140dbc69924c00d56b0797cd7cc50aceea1bf858bbadc05dab6f7ede11821c
3b51dc9ecd141fd30a12ab8a0d4a10bb3b50ec28a80ee64cfc736ca8dd2ba7e2
33910338115a8da407e1a15477e593b07fc645ef619a787bbb51ee77906c6e4c
SH256 hash:
3b51dc9ecd141fd30a12ab8a0d4a10bb3b50ec28a80ee64cfc736ca8dd2ba7e2
MD5 hash:
5f5ddb82ea65c4cce7bb2871aa752565
SHA1 hash:
b8ee506136aaf1237f9ad396a5f5182a880ac9ff
Link:
https://www.unpac.me/results/7060119b-4e56-4c76-b2ce-6c3b84b4db48/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3b51dc9ecd14/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3b51dc9ecd141fd30a12ab8a0d4a10bb3b50ec28a80ee64cfc736ca8dd2ba7e2

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:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
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.

Web download

AsyncRAT

Executable exe 3b51dc9ecd141fd30a12ab8a0d4a10bb3b50ec28a80ee64cfc736ca8dd2ba7e2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2239064/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/280554/

Comments