MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efba734e54ef2c24ef4e8dbb5adc966af3b20b42ac7a43be04963c23297f9986. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efba734e54ef2c24ef4e8dbb5adc966af3b20b42ac7a43be04963c23297f9986
SHA3-384 hash: e2318b0e7a0f889b239d21c3ab276c5ed8be0a75525991bd9f28f85b3ff800804de2673200ced936ac1b60bdb78df7d9
SHA1 hash: e0e23152950ecf399808c39621ba2ee52cdac397
MD5 hash: db3340f0d388ff83362e6bfedf5efc23
humanhash: tennessee-victor-cat-shade
File name:db3340f0d388ff83362e6bfedf5efc23.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:611'840 bytes
First seen:2022-08-11 06:27:16 UTC
Last seen:2022-08-11 07:54:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:yITdSVaCR8WczUaG6VJMx2Zyq8xpcWT66kWdT8gJTc:xdSAC7mC6V6x+yd66ksa
TLSH T13ED4F106DDDB8CE9C170B732A28345708E732659D1E6DE21786A19373F22B7AE943F41
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)
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
529
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
db3340f0d388ff83362e6bfedf5efc23.exe
Verdict:
Malicious activity
Analysis date:
2022-08-11 06:30:24 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/429b0742-1b76-47af-a63f-359d59f2cbae

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/297863/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.41122.27020.30748.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62f4a17a7a5eee5048079151/reports/4fbf5864-c7b8-4d61-9f55-34f52425d0ae/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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/69146149-ba96-4a00-862c-808a36720c6b
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1049741
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 682235 Sample: xzehAFq8P6.exe Startdate: 11/08/2022 Architecture: WINDOWS Score: 100 67 Malicious sample detected (through community Yara rule) 2->67 69 Multi AV Scanner detection for dropped file 2->69 71 Multi AV Scanner detection for submitted file 2->71 73 7 other signatures 2->73 10 xzehAFq8P6.exe 7 2->10         started        process3 file4 53 C:\Users\user\AppData\...\toQoZxETVScZtb.exe, PE32 10->53 dropped 55 C:\...\toQoZxETVScZtb.exe:Zone.Identifier, ASCII 10->55 dropped 57 C:\Users\user\AppData\Local\...\tmp50D2.tmp, XML 10->57 dropped 59 C:\Users\user\AppData\...\xzehAFq8P6.exe.log, ASCII 10->59 dropped 75 Uses schtasks.exe or at.exe to add and modify task schedules 10->75 77 Adds a directory exclusion to Windows Defender 10->77 79 Injects a PE file into a foreign processes 10->79 14 xzehAFq8P6.exe 6 10->14         started        17 powershell.exe 23 10->17         started        19 schtasks.exe 1 10->19         started        21 xzehAFq8P6.exe 10->21         started        signatures5 process6 file7 61 C:\Users\user\AppData\Roaming\images.exe, PE32 14->61 dropped 23 cmd.exe 1 14->23         started        25 cmd.exe 1 14->25         started        27 conhost.exe 17->27         started        29 conhost.exe 19->29         started        process8 process9 31 images.exe 5 23->31         started        34 conhost.exe 23->34         started        36 timeout.exe 1 23->36         started        38 conhost.exe 25->38         started        40 schtasks.exe 1 25->40         started        signatures10 81 Multi AV Scanner detection for dropped file 31->81 83 Machine Learning detection for dropped file 31->83 85 Adds a directory exclusion to Windows Defender 31->85 87 Injects a PE file into a foreign processes 31->87 42 powershell.exe 31->42         started        45 schtasks.exe 31->45         started        47 images.exe 31->47         started        process11 dnsIp12 63 192.168.2.1 unknown unknown 42->63 49 conhost.exe 42->49         started        51 conhost.exe 45->51         started        65 37.0.14.197, 49845, 49849, 49858 WKD-ASIE Netherlands 47->65 process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efba734e54ef2c24ef4e8dbb5adc966af3b20b42ac7a43be04963c23297f9986/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2022-08-11 01:02:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
22 of 40 (55.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=565hgtsu54wcj32orw5vvxewnlz3ec2cvr5ehpqesy6cgkl7tgda._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat spyware stealer
Link:
https://tria.ge/reports/220811-g8bz4aeae7/
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
Reads user/profile data of web browsers
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
37.0.14.197:6060
Unpacked files
SH256 hash:
d9815bb372a12b81cf663831baf273923819b06dc7ce824f5b5f200d668e01ee
MD5 hash:
fe24c7c2f0c7cbb6433ac01020acba9e
SHA1 hash:
e149c3be919abfd4a3fbdefcedd771710d616b8a
Link:
https://www.unpac.me/results/92a600d0-4b35-4427-8e96-c159f1657abe/
SH256 hash:
18eb60c0eb3e1c610526d9f4b42684ac36a2ebb521514a8770dca2f2afd7f471
MD5 hash:
7ca239778f9f46d28b08876564dba525
SHA1 hash:
973b0d0d98a83b7dfcf1bfce04a179b0f070b98c
Link:
https://www.unpac.me/results/92a600d0-4b35-4427-8e96-c159f1657abe/
SH256 hash:
7c821ea3e00f975c0f7dcd6f1ae2386026a8068df19b7fbc798e119d98e5bba1
MD5 hash:
bc996205758bc722ef53cf97c28b30c5
SHA1 hash:
26f089535071f42609130294913f5a92cd349d27
Detections:
win_asyncrat_w0
Create hunting rule
AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/92a600d0-4b35-4427-8e96-c159f1657abe/
Parent samples :
52037b1dc98944493fc6ac41ab7fbc62c7eef79238c2b7f8d9242284e08f8a3b
02c71d1d645ca94afbcada9f86a032444503b89e5f72ed3425a0ba84f45b352c
634646caa5124c31a7c686be59e10a0c7dbc3e747bfac70596b4b024c2c362c9
d56ce1bc69007aae6176c39ae79137f5b7013a7e4e4fdfce9457d945b92204fa
4311e14e2db7fe3ad8eb569fd2b5db6ee024474f1018962c9d64866e6942855f
efba734e54ef2c24ef4e8dbb5adc966af3b20b42ac7a43be04963c23297f9986
53949b99b9556d09fe8d11ec6d41d96055a9fbf2a31360f38ab18b26b6511219
88ce6b04f64de275ec9cfc98f50effcaa90aac02a6ff2a0802038aa39e40b7f0
ebc345d1416bab9c401e6c380199ca32accb0aaed66d5327aa2694284757aebf
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/92a600d0-4b35-4427-8e96-c159f1657abe/
SH256 hash:
f293c34674c2dcbb0f98c785bf8a24a027bcd30c60f61b721fb41bd2bc441399
MD5 hash:
b6d5ff83a674847e3597e5b62bb69a1e
SHA1 hash:
0ff49e0e27c49b805533d1951355b295541f8584
Link:
https://www.unpac.me/results/92a600d0-4b35-4427-8e96-c159f1657abe/
SH256 hash:
efba734e54ef2c24ef4e8dbb5adc966af3b20b42ac7a43be04963c23297f9986
MD5 hash:
db3340f0d388ff83362e6bfedf5efc23
SHA1 hash:
e0e23152950ecf399808c39621ba2ee52cdac397
Link:
https://www.unpac.me/results/92a600d0-4b35-4427-8e96-c159f1657abe/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/efba734e54ef/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/efba734e54ef2c24ef4e8dbb5adc966af3b20b42ac7a43be04963c23297f9986

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: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.

Web download

AsyncRAT

Executable exe efba734e54ef2c24ef4e8dbb5adc966af3b20b42ac7a43be04963c23297f9986

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2266108/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/297863/

Comments