MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 096828f870c34c74c45535a4ee1b8154d95f71fe332397b8b4d43cb6e4377b8f. 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: 096828f870c34c74c45535a4ee1b8154d95f71fe332397b8b4d43cb6e4377b8f
SHA3-384 hash: 73f0f76f9c0272545c653f86e155ee09d1cb9eff3355de922be86057a6d6a9a11749203053d23a8a3b36136145d763f5
SHA1 hash: c4f304f3d7825341a6b73d52064a88c21074023d
MD5 hash: f41618ae21a27e35f0e08be89a6fc7ad
humanhash: edward-cardinal-early-sodium
File name:CN-Invoice-XXXXX9808-19011143287992.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:642'952 bytes
First seen:2021-02-23 07:24:25 UTC
Last seen:2021-02-23 08:45:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:W0VxJUSsqUGbGS49QyBOdI/MPZJpyYPEPewx:7XJUDvKcQyY/PVPE2O
Threatray 709 similar samples on MalwareBazaar
TLSH FED449D4799430B7E5878FB6425B6768F0F132B3AFB2145984244EC0E5603D5BE0EAEB
Reporter abuse_ch
Tags:AsyncRAT exe FedEx RAT


Avatar
abuse_ch
Malspam distributing AsyncRAT:

HELO: [45.153.203.243]
Sending IP: 45.153.203.243
From: FedEx Express - Do Not Reply <Carrie.Park@expeditors.com>
Reply-To: nopeply-fedeoxngr@iname.com
Subject: [CN]: FedEx Invoice 账单 (CustomerAccount -XXXXX9808-19011143287992)
Attachment: CN-Invoice-XXXXX9808-19011143287992.iso (contains "CN-Invoice-XXXXX9808-19011143287992.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
128
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/118515/
Detection(s):
SecuriteInfo.com.Trojan.18126.7475.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Launching a process
Creating a process with a hidden window
Sending a UDP request
Creating a file
Creating a window
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Launching a service
Deleting a recently created file
Running batch commands
Adding an access-denied ACE
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Setting a single autorun event
Forced shutdown of a system process
Sending an HTTP GET request to an infection source
Adding exclusions to Windows Defender
Unauthorized injection to a system 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:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/614932
Signature
Adds a directory exclusion to Windows Defender
Binary contains a suspicious time stamp
Changes security center settings (notifications, updates, antivirus, firewall)
Connects to a pastebin service (likely for C&C)
Drops PE files with benign system names
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 356474 Sample: CN-Invoice-XXXXX9808-190111... Startdate: 23/02/2021 Architecture: WINDOWS Score: 100 49 pastebin.com 2->49 51 coroloboxorozor.com 2->51 57 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->57 59 Multi AV Scanner detection for dropped file 2->59 61 Multi AV Scanner detection for submitted file 2->61 63 8 other signatures 2->63 8 CN-Invoice-XXXXX9808-19011143287992.exe 23 9 2->8         started        13 svchost.exe 2->13         started        15 svchost.exe 9 1 2->15         started        17 12 other processes 2->17 signatures3 process4 dnsIp5 53 coroloboxorozor.com 172.67.172.17, 49705, 49738, 80 CLOUDFLARENETUS United States 8->53 43 C:\Program Files\Common Files\...\svchost.exe, PE32 8->43 dropped 45 C:\...\svchost.exe:Zone.Identifier, ASCII 8->45 dropped 47 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 8->47 dropped 65 Adds a directory exclusion to Windows Defender 8->65 67 Hides threads from debuggers 8->67 69 Drops PE files with benign system names 8->69 19 cmd.exe 8->19         started        21 powershell.exe 11 8->21         started        23 powershell.exe 7 8->23         started        25 AdvancedRun.exe 1 8->25         started        71 Changes security center settings (notifications, updates, antivirus, firewall) 13->71 27 MpCmdRun.exe 13->27         started        55 127.0.0.1 unknown unknown 15->55 29 svchost.exe 17->29         started        file6 signatures7 process8 process9 31 conhost.exe 19->31         started        33 timeout.exe 19->33         started        35 conhost.exe 21->35         started        37 conhost.exe 23->37         started        39 AdvancedRun.exe 25->39         started        41 conhost.exe 27->41         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/096828f870c34c74c45535a4ee1b8154d95f71fe332397b8b4d43cb6e4377b8f/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2021-02-23 07:24:38 UTC
AV detection:
14 of 46 (30.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bfucr6dqynghjrcvgwso4g4bktmv64p6gmrzpofu2q6lnzbxpohq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
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AsyncRAT
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AsyncRAT
+ 699 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat evasion persistence rat trojan
Link:
https://tria.ge/reports/210223-j14j11e436/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Windows security modification
Executes dropped EXE
Async RAT payload
Nirsoft
AsyncRat
Modifies Windows Defender Real-time Protection settings
Turns off Windows Defender SpyNet reporting
Windows security bypass
Malware Config
C2 Extraction:
null:null
Unpacked files
SH256 hash:
096828f870c34c74c45535a4ee1b8154d95f71fe332397b8b4d43cb6e4377b8f
MD5 hash:
f41618ae21a27e35f0e08be89a6fc7ad
SHA1 hash:
c4f304f3d7825341a6b73d52064a88c21074023d
Link:
https://www.unpac.me/results/ffed0dcc-da2c-45f9-a75a-137777c8c984/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/096828f870c34c74c45535a4ee1b8154d95f71fe332397b8b4d43cb6e4377b8f

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

iso a6a22cc79fc4b2126f3fce1eb254251d8731bc380739d001af30abdb05473e30

AsyncRAT

Executable exe 096828f870c34c74c45535a4ee1b8154d95f71fe332397b8b4d43cb6e4377b8f

(this sample)

  
Dropped by
MD5 33c938a4f70bbcc3a3929cc24494cb6b
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/118515/
  
Dropped by
SHA256 a6a22cc79fc4b2126f3fce1eb254251d8731bc380739d001af30abdb05473e30

Comments