MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 34f8bcf6b03161c345bac8ab9238cbe95865e69d25f597ca111bf22b0f887717. 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: 8


Intelligence 8 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 34f8bcf6b03161c345bac8ab9238cbe95865e69d25f597ca111bf22b0f887717
SHA3-384 hash: 82be80056c6484f3449aefb244a5e15bbbac2470824b1384309c3cf3416d1ea5ba4b8cc27668cc8eb18c183d4fce32a9
SHA1 hash: f3d776fe8db4fd15f9d9aa2992509ecc81f2ba1f
MD5 hash: 45055bc9f083316a0f772abc193274a7
humanhash: orange-berlin-snake-don
File name:Inquiry #00103092021.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:70'824 bytes
First seen:2021-03-09 11:50:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:d/zEOWXv29PbYUGe7DnSVDe/o+we5cXdArw+i+d+R+f878xWsK24y35u/MkKTxsu:ePv+Ge7bSNe/o+we5cXdA/BTxskJ
Threatray 779 similar samples on MalwareBazaar
TLSH 1263144EA19E694AF1EF7DF629DD344A782366C1A0C1A00AF73D617A5CF381D062DC63
Reporter abuse_ch
Tags:AsyncRAT exe nVpn RAT


Avatar
abuse_ch
Malspam distributing AsyncRAT:

HELO: MTA-09-3.privateemail.com
Sending IP: 68.65.122.19
From: Susan Yang <info@suntoolz.us>
Subject: Re: Inquiry #00103092021
Attachment: Inquiry 00103092021.tar (contains "Inquiry #00103092021.exe")

AsyncRAT C2:
timnoipnew.ddns.net:4449 (194.5.98.206)

Pointing to nVpn:

% Information related to '194.5.98.0 - 194.5.98.255'

% Abuse contact for '194.5.98.0 - 194.5.98.255' is 'abuse@privacyfirst.sh'

inetnum: 194.5.98.0 - 194.5.98.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-NO
country: NO
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-04-26T16:42:54Z
last-modified: 2020-10-07T21:35:29Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
141
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Inquiry #00103092021.exe
Verdict:
Malicious activity
Analysis date:
2021-03-09 11:57:04 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/87f0ba7f-8cb4-4834-adc5-3c1d63073500

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/123173/
Detection(s):
SecuriteInfo.com.Artemis45055BC9F083.27119.22107.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending an HTTP GET request
Creating a file
Moving a recently created file
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a service
Deleting a recently created file
Launching a process
Creating a file in the Windows subdirectories
Sending a UDP request
Setting a single autorun event
Blocking the User Account Control
Adding exclusions to Windows Defender
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.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/632833
Signature
Adds a directory exclusion to Windows Defender
Binary contains a suspicious time stamp
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an autostart registry key pointing to binary in C:\Windows
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 365378 Sample: Inquiry #00103092021.exe Startdate: 09/03/2021 Architecture: WINDOWS Score: 96 75 Multi AV Scanner detection for submitted file 2->75 77 Binary contains a suspicious time stamp 2->77 79 Sigma detected: System File Execution Location Anomaly 2->79 81 3 other signatures 2->81 8 Inquiry #00103092021.exe 23 17 2->8         started        13 explorer.exe 2->13         started        15 explorer.exe 2->15         started        17 12 other processes 2->17 process3 dnsIp4 65 liverpoolofcfanclub.com 172.67.174.240, 49703, 80 CLOUDFLARENETUS United States 8->65 53 C:\Windows\Resources\Themes\...\svchost.exe, PE32 8->53 dropped 55 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 8->55 dropped 57 C:\Users\...\Inquiry #00103092021.exe.log, ASCII 8->57 dropped 59 2 other files (none is malicious) 8->59 dropped 83 Creates an autostart registry key pointing to binary in C:\Windows 8->83 85 Adds a directory exclusion to Windows Defender 8->85 19 AdvancedRun.exe 8->19         started        21 powershell.exe 26 8->21         started        23 powershell.exe 24 8->23         started        34 2 other processes 8->34 87 Drops executables to the windows directory (C:\Windows) and starts them 13->87 25 svchost.exe 13->25         started        29 svchost.exe 15->29         started        67 127.0.0.1 unknown unknown 17->67 89 Changes security center settings (notifications, updates, antivirus, firewall) 17->89 32 MpCmdRun.exe 17->32         started        file5 signatures6 process7 dnsIp8 36 AdvancedRun.exe 19->36         started        39 conhost.exe 21->39         started        41 conhost.exe 23->41         started        69 liverpoolofcfanclub.com 25->69 91 System process connects to network (likely due to code injection or exploit) 25->91 71 104.21.31.39, 49713, 49714, 49715 CLOUDFLARENETUS United States 29->71 73 liverpoolofcfanclub.com 29->73 61 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 29->61 dropped 93 Multi AV Scanner detection for dropped file 29->93 43 AdvancedRun.exe 29->43         started        45 conhost.exe 32->45         started        47 AdvancedRun.exe 34->47         started        49 conhost.exe 34->49         started        file9 signatures10 process11 dnsIp12 63 192.168.2.1 unknown unknown 36->63 51 AdvancedRun.exe 43->51         started        process13
Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-09 02:19:26 UTC
AV detection:
20 of 47 (42.55%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gt4lz5vqgfq4grn2zcvzeogl5fmglzu5ex2zpsqrdpzcwd4io4lq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
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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
AsyncRAT
bcfcc5a278671fbe1b5f5f27c6d61921add83e57a0c61f80a165455b3fe0875a
AsyncRAT
+ 769 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion persistence trojan
Link:
https://tria.ge/reports/210309-pyr3g75maj/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Drops file in Windows directory
Adds Run key to start application
Checks whether UAC is enabled
Loads dropped DLL
Windows security modification
Executes dropped EXE
Nirsoft
Modifies Windows Defender Real-time Protection settings
Turns off Windows Defender SpyNet reporting
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
34f8bcf6b03161c345bac8ab9238cbe95865e69d25f597ca111bf22b0f887717
MD5 hash:
45055bc9f083316a0f772abc193274a7
SHA1 hash:
f3d776fe8db4fd15f9d9aa2992509ecc81f2ba1f
Link:
https://www.unpac.me/results/fcc4ed42-fcd6-47e1-b8bb-5fbed224f648/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/34f8bcf6b03161c345bac8ab9238cbe95865e69d25f597ca111bf22b0f887717

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.

Malspam

AsyncRAT

tar fdf8a78978af9adc3c494f67200e1be3206c6c7efc49643a51c6dd512fdecd2a

AsyncRAT

Executable exe 34f8bcf6b03161c345bac8ab9238cbe95865e69d25f597ca111bf22b0f887717

(this sample)

  
Dropped by
MD5 619703c882b76b062ffa232717bce2f4
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/123173/
  
Dropped by
SHA256 fdf8a78978af9adc3c494f67200e1be3206c6c7efc49643a51c6dd512fdecd2a

Comments