MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0137042c076d728f11067b31394854e43724b1b588a65d0718d696ac2efd7f3f. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0137042c076d728f11067b31394854e43724b1b588a65d0718d696ac2efd7f3f
SHA3-384 hash: f9cf17cc3fc0415b570526261ebd70be1c995c34f0b3a2c98155b11fc291310dae377edc32b800706be6693e9a91732e
SHA1 hash: e69b54b85e94843872c0c9fc8c27bd5acec5610d
MD5 hash: 11cb358c4c811c88fa106748e3696a31
humanhash: michigan-nineteen-india-island
File name:ES174028911-035110-sanlccjavap0004-1_pdf.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:1'202'176 bytes
First seen:2020-11-09 15:35:20 UTC
Last seen:2020-11-15 23:03:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:Eev1OKYf8m+oWWCjlp2rIyk/hMH6FpfMH5y6nnjqKoel:ESO+zyL4fa06nnjqKoel
Threatray 14 similar samples on MalwareBazaar
TLSH 4445984814A9238AD47333BE57743481C3B5D96772E8C9D3029CBBB2EE9DC365B71A06
Reporter abuse_ch
Tags:AsyncRAT ESP exe geo nVpn RAT Santander


Avatar
abuse_ch
Malspam distributing AsyncRAT:

HELO: mail666a.masbytes.es
Sending IP: 5.56.160.160
From: Factoring y Confirming - Grupo Santander <fycout@gruposantander.es>
Subject: Notificación de demora de remesas//
Attachment: ES174028911-035110-sanlccjavap0004-1_pdf.gz (contains "ES174028911-035110-sanlccjavap0004-1_pdf.exe")

AsyncRAT C2:
79.134.225.99:4726

Hosted on nVpn:

% Information related to '79.134.225.0 - 79.134.225.127'

% Abuse contact for '79.134.225.0 - 79.134.225.127' is 'abuse@privacyfirst.sh'

inetnum: 79.134.225.0 - 79.134.225.127
netname: PRIVACYFIRST-EU
country: EU
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.
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
status: ASSIGNED PA
mnt-by: AF15-MNT
org: ORG-TPP6-RIPE
created: 2020-07-14T15:26:02Z
last-modified: 2020-07-14T15:31:06Z
source: RIPE

Intelligence

File Origin
# of uploads :
4
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Creating a file
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
Unauthorized injection to a recently created process
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:
88 / 100
Link:
https://www.joesandbox.com/analysis/526574
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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 Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 312376 Sample: ES174028911-035110-sanlccja... Startdate: 09/11/2020 Architecture: WINDOWS Score: 88 42 Multi AV Scanner detection for submitted file 2->42 44 Machine Learning detection for sample 2->44 46 Initial sample is a PE file and has a suspicious name 2->46 48 3 other signatures 2->48 9 ES174028911-035110-sanlccjavap0004-1_pdf.exe 3 2->9         started        process3 file4 36 ES174028911-035110...p0004-1_pdf.exe.log, ASCII 9->36 dropped 56 Injects a PE file into a foreign processes 9->56 58 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 9->58 13 ES174028911-035110-sanlccjavap0004-1_pdf.exe 6 9->13         started        signatures5 process6 file7 38 C:\Users\user\AppData\Roaming\microsoft.exe, PE32 13->38 dropped 16 cmd.exe 1 13->16         started        18 cmd.exe 1 13->18         started        process8 process9 20 microsoft.exe 3 16->20         started        23 conhost.exe 16->23         started        25 timeout.exe 1 16->25         started        27 conhost.exe 18->27         started        29 schtasks.exe 1 18->29         started        signatures10 50 Multi AV Scanner detection for dropped file 20->50 52 Machine Learning detection for dropped file 20->52 54 Injects a PE file into a foreign processes 20->54 31 microsoft.exe 2 20->31         started        34 microsoft.exe 20->34         started        process11 dnsIp12 40 79.134.225.99, 4726, 49748, 49750 FINK-TELECOM-SERVICESCH Switzerland 31->40
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0137042c076d728f11067b31394854e43724b1b588a65d0718d696ac2efd7f3f/
Threat name:
ByteCode-MSIL.Trojan.Azorult
Create hunting rule
Status:
Malicious
First seen:
2020-11-09 08:32:15 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ae3qilahnvzi6eigpmytsscu4q3sjmnvrctf2byy22lkylx5p47q._file
Verdict:
unknown
Similar samples:
02026f0a7193b66036223f82eff070e816ebfbea86af8bb8fa5c92bf6119633f
AsyncRAT
1643306adbe8c7e38ee965ab974c1d074afc671c0e5aa0c2b50a18cc67036a50
AsyncRAT
2e4775c5d181f37f4a0802a9982601352f0a7de1ffd74909024150572ed6522b
AsyncRAT
3ee82cb6b92599b06273f1a48091fdbab0ca285fb8147501a0392b8a2eba583c
AsyncRAT
47aaf274ba6635b13798292366c06640a3dff0d314b56aabf0dc4f6d22ab5bd4
AsyncRAT
ad7e94c87890fd0d5e1ad30178606823c42c01b5e07bbc56bb86bf2bf3ae1477
AsyncRAT
ce4c9d123144cb01aaa09ecfc34a21b6808c8d891fdd777e3bc8736fc3d877ca
AsyncRAT
d8f37e199f10881b2045823553fd64f3f52ec616e24f2235a47dae7c435a3c72
AsyncRAT
e69d8cb762149ef5d9cbc14ba3b4c1a48395c5261f9c404608a37c1807f1e19e
AsyncRAT
ff734df4d09afad52e931fce898a5497b78081fbca44f091e55a3da4b47c1350
AsyncRAT
+ 4 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat spyware
Link:
https://tria.ge/reports/201109-cavcy4htpa/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
AsyncRat
Malware Config
C2 Extraction:
:
Malware family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0137042c076d/report/overview.html
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/0137042c076d728f11067b31394854e43724b1b588a65d0718d696ac2efd7f3f

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: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

gz dc69912f1d9a94b17546a6785d14241927e92fb2ec0b617c934700185fbf8f2e

AsyncRAT

Executable exe 0137042c076d728f11067b31394854e43724b1b588a65d0718d696ac2efd7f3f

(this sample)

  
Dropped by
MD5 e0bc7ecd6d83d087c065ed77614bf755
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 dc69912f1d9a94b17546a6785d14241927e92fb2ec0b617c934700185fbf8f2e

Comments