MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e40828419d3d17ba95df5804bd5ae4315e451dbae29ac4e857317549c9944d85. 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

SHA256 hash: e40828419d3d17ba95df5804bd5ae4315e451dbae29ac4e857317549c9944d85
SHA3-384 hash: 97832c1c5b3d5fdf1628218c5561e7c4713583ba61858d4847be93d5e760033aae11cc36a7647b7fa079890df27912f5
SHA1 hash: 93a79eeefa3e6a0ffdffdfb053e7b42f555a79bd
MD5 hash: 573d010ac84428058fd7959dfa5b6819
humanhash: mexico-ceiling-uranus-south
File name:Request for Quotation - P02979.pdf.exe
Download: download sample
Signature AsyncRAT
File size:410'112 bytes
First seen:2021-09-22 08:27:45 UTC
Last seen:2021-09-22 14:15:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:kl2pNmtiS3/NpZZaBAqCqPfqw628uaTua7363jKTxnE8bBCshIaQ/ls:jmtiK5oBAePfqy8dX732mlnE2Cm
Threatray 2'238 similar samples on MalwareBazaar
TLSH T11E940235ED68AAA3C4BD0B7BE4B805012779C486AE03C75FAAF030CD5BE37EB4415906
Reporter GovCERT_CH
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Request for Quotation - P02979.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-09-22 08:30:19 UTC
Tags:
trojan rat asyncrat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Threat name:
AsyncRAT
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Found malware configuration
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
Sigma detected: Suspicious Double Extension
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected AsyncRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 487857 Sample: Request for Quotation - P02... Startdate: 22/09/2021 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Yara detected AntiVM3 2->53 55 6 other signatures 2->55 9 Request for Quotation - P02979.pdf.exe 3 2->9         started        13 dew.exe 3 2->13         started        process3 file4 43 Request for Quotat... P02979.pdf.exe.log, ASCII 9->43 dropped 59 Injects a PE file into a foreign processes 9->59 15 Request for Quotation - P02979.pdf.exe 6 9->15         started        61 Multi AV Scanner detection for dropped file 13->61 63 Machine Learning detection for dropped file 13->63 18 dew.exe 2 13->18         started        signatures5 process6 dnsIp7 45 C:\Users\user\AppData\Roaming\dew.exe, PE32 15->45 dropped 21 cmd.exe 1 15->21         started        23 cmd.exe 1 15->23         started        47 79.134.225.9, 3030, 49772 FINK-TELECOM-SERVICESCH Switzerland 18->47 file8 process9 signatures10 26 dew.exe 2 21->26         started        29 conhost.exe 21->29         started        31 timeout.exe 1 21->31         started        57 Uses schtasks.exe or at.exe to add and modify task schedules 23->57 33 conhost.exe 23->33         started        35 schtasks.exe 1 23->35         started        process11 signatures12 65 Injects a PE file into a foreign processes 26->65 37 dew.exe 2 26->37         started        39 dew.exe 26->39         started        41 dew.exe 26->41         started        process13
Threat name:
Win32.Trojan.Mardom
Status:
Malicious
First seen:
2021-09-22 07:11:32 UTC
AV detection:
17 of 45 (37.78%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat rat suricata
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
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
Unpacked files
SH256 hash:
cac8b347040a359c02ae5e658d3d76230c7dd7eb33505605ed0b9bc49ff268c7
MD5 hash:
71a894ff252c767b80d65ab1e54fda2b
SHA1 hash:
bcc4ff628585ca28b8b0f2c30e63049b910d4d49
SH256 hash:
f9646ee6157dcc5a07514405b4aaabe74589120ed30f2da07511b15fb200604c
MD5 hash:
091dac6c86dc56c5d269ad6b5398536e
SHA1 hash:
3a8944dd64229b2bb065f49010c741dab12abbbf
SH256 hash:
43894d802e7bd17adc917e5b90f08c31e2a9359e3bb9dd379c5644c5e0d02356
MD5 hash:
5f916fc9a1b36e300aad1ca6cad0fada
SHA1 hash:
1cebfb448b497ed5aeac21b36294240abdc93579
SH256 hash:
e40828419d3d17ba95df5804bd5ae4315e451dbae29ac4e857317549c9944d85
MD5 hash:
573d010ac84428058fd7959dfa5b6819
SHA1 hash:
93a79eeefa3e6a0ffdffdfb053e7b42f555a79bd
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_asyncrat_j1
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
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

Executable exe e40828419d3d17ba95df5804bd5ae4315e451dbae29ac4e857317549c9944d85

(this sample)

  
Dropped by
AsyncRAT
  
Delivery method
Distributed via e-mail attachment

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