MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77d67f012ba8a050c1885f2ab7b7b9057c1af8720ee3208b144526e1ea1652d4. 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: 77d67f012ba8a050c1885f2ab7b7b9057c1af8720ee3208b144526e1ea1652d4
SHA3-384 hash: ecd2f14922bbe65c282c0f538e4ddae25a83186d75ecf3a5523e796ed018c2df842f3ae9b144e45529b867daa910f057
SHA1 hash: effd448f53b2cbd7686ec5fdf09fc417957fc16d
MD5 hash: a3d6ec93a72892f8617aa52479e25288
humanhash: paris-magnesium-oxygen-vermont
File name:a3d6ec93a72892f8617aa52479e25288.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:90'624 bytes
First seen:2022-07-29 14:42:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9f4693fc0c511135129493f2161d1e86 (250 x Neshta, 15 x Formbook, 14 x AgentTesla)
ssdeep 1536:JxqjQ+P04wsmJC7kJDZVclNBMvr4rTopzb00qgyzvh:sr85C7ozYcvr4rTopzb0Rp
TLSH T1F8938D40B7E0C436D17C0FB8ECB29244C57AF6232D13CAA97DD8199E5E27BC15A065EE
TrID 78.9% (.EXE) Win32 Executable Borland Delphi 6 (262638/61)
4.2% (.EXE) Win32 Executable Delphi generic (14182/79/4)
3.9% (.SCR) Windows screen saver (13101/52/3)
3.1% (.EXE) Win64 Executable (generic) (10523/12/4)
3.0% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
343
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/295109/
Detection(s):
Win.Trojan.Neshuta-1
Create hunting rule

PUA.Win.Packer.Pequake-4
Create hunting rule

Win.Virus.Neshta-7101689-0
Create hunting rule

Win.Malware.Generickdz-9865912-0
Create hunting rule

Win.Malware.Enigmaprotector-9874743-0
Create hunting rule

Win.Malware.Enigmaprotector-9881027-0
Create hunting rule

Win.Trojan.Jadtre-5
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file in the Windows directory
Modifying an executable file
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file
Running batch commands
Creating a file in the Program Files subdirectories
Searching for the window
Launching a process
Sending a custom TCP request
DNS request
Unauthorized injection to a recently created process
Enabling autorun with the shell\open\command registry branches
Infecting executable files
Enabling autorun by creating a file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/27747/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug anti-vm configsecuritypolicy.exe evasive hacktool mpcmdrun.exe msconfig.exe neshta njrat overlay rat regedit.exe shell32.dll
Link:
https://www.filescan.io/uploads/62e3f205bcf76fcb6cce50ab/reports/aa917e4a-6bb2-40d2-8582-0028f0201340/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:
Neshta
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0e627ab6-cbbe-4bb0-8962-6030822549f0
Result
Threat name:
AsyncRAT, Neshta
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1043232
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with a suspicious file extension
Drops PE files with benign system names
Infects executable files (exe, dll, sys, html)
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
Sample is not signed and drops a device driver
Sigma detected: Schedule system process
System process connects to network (likely due to code injection or exploit)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected Neshta
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 675729 Sample: M7PbuhdzeR.exe Startdate: 29/07/2022 Architecture: WINDOWS Score: 100 52 dropy2.ddns.net 2->52 54 dropy1.ddns.net 2->54 56 dropy.ddns.net 2->56 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus detection for dropped file 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 12 other signatures 2->70 10 M7PbuhdzeR.exe 4 2->10         started        signatures3 process4 file5 40 C:\Windows\svchost.com, PE32 10->40 dropped 42 C:\Users\user\AppData\Local\...\setup.exe, PE32 10->42 dropped 44 C:\Users\user\AppData\...\M7PbuhdzeR.exe, PE32 10->44 dropped 46 11 other malicious files 10->46 dropped 86 Creates an undocumented autostart registry key 10->86 88 Drops PE files with a suspicious file extension 10->88 90 Drops executable to a common third party application directory 10->90 92 Infects executable files (exe, dll, sys, html) 10->92 14 M7PbuhdzeR.exe 3 7 10->14         started        signatures6 process7 file8 48 C:\Users\user\AppData\Roaming\svchost.exe, PE32 14->48 dropped 50 C:\Users\user\AppData\...\M7PbuhdzeR.exe.log, ASCII 14->50 dropped 94 Antivirus detection for dropped file 14->94 96 Multi AV Scanner detection for dropped file 14->96 98 Machine Learning detection for dropped file 14->98 100 2 other signatures 14->100 18 svchost.com 1 14->18         started        22 cmd.exe 1 14->22         started        signatures9 process10 file11 38 C:\Windows\directx.sys, ASCII 18->38 dropped 72 Antivirus detection for dropped file 18->72 74 Machine Learning detection for dropped file 18->74 76 Sample is not signed and drops a device driver 18->76 24 cmd.exe 1 18->24         started        27 svchost.exe 2 22->27         started        30 conhost.exe 22->30         started        32 timeout.exe 1 22->32         started        signatures12 process13 dnsIp14 78 Uses schtasks.exe or at.exe to add and modify task schedules 24->78 34 conhost.exe 24->34         started        36 schtasks.exe 1 24->36         started        58 dropy2.ddns.net 27->58 60 dropy1.ddns.net 27->60 62 2 other IPs or domains 27->62 80 Antivirus detection for dropped file 27->80 82 System process connects to network (likely due to code injection or exploit) 27->82 84 Machine Learning detection for dropped file 27->84 signatures15 process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/77d67f012ba8a050c1885f2ab7b7b9057c1af8720ee3208b144526e1ea1652d4/
Threat name:
Win32.Virus.Neshta
Create hunting rule
Status:
Malicious
First seen:
2022-07-28 13:05:05 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
26 of 26 (100.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=o7lh6ajlvcqfbqmil4vlpn5zav6bv6dsb3rsbcyuiutod2qwklka._file
Result
Malware family:
neshta
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat family:neshta botnet:default persistence rat spyware stealer
Link:
https://tria.ge/reports/220729-r3kp6abcfk/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Async RAT payload
AsyncRat
Detect Neshta payload
Modifies system executable filetype association
Neshta
Malware Config
C2 Extraction:
dropy.ddns.net:22
dropy1.ddns.net:22
dropy2.ddns.net:22
Unpacked files
SH256 hash:
77d67f012ba8a050c1885f2ab7b7b9057c1af8720ee3208b144526e1ea1652d4
MD5 hash:
a3d6ec93a72892f8617aa52479e25288
SHA1 hash:
effd448f53b2cbd7686ec5fdf09fc417957fc16d
Detections:
win_neshta_g0
Create hunting rule
Link:
https://www.unpac.me/results/36086b65-ea31-44aa-833d-5b95c0d001f1/
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/77d67f012ba8a050c1885f2ab7b7b9057c1af8720ee3208b144526e1ea1652d4

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:INDICATOR_SUSPICIOUS_EXE_B64_Artifacts
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Rule name:INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
Author:ditekSHen
Description:Detects executables containing the string DcRatBy
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
Rule name:MALWARE_Win_Neshta
Create hunting rule
Author:ditekSHen
Description:Detects Neshta
Rule name:MAL_Neshta_Generic
Create hunting rule
Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research
Rule name:MAL_Neshta_Generic_RID2DC9
Create hunting rule
Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research
Rule name:win_neshta_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Web download

AsyncRAT

Executable exe 77d67f012ba8a050c1885f2ab7b7b9057c1af8720ee3208b144526e1ea1652d4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2259400/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/295109/

Comments