MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c903da10b8241191defbb1eff45dea618f19270c72e1905e0748e75178de3a63. 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


BitRAT


Vendor detections: 14


Intelligence 14 IOCs YARA 21 File information Comments
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SHA256 hash: c903da10b8241191defbb1eff45dea618f19270c72e1905e0748e75178de3a63
SHA3-384 hash: 0a9557233a3455b7ba2e2a8c2e9d30e1d4e86ba0b5a00253dcf9456d186a18baacc79dc9b4a51fa475a5c430c965d514
SHA1 hash: ec96849ae81e9982cde0750c78422e495be2f377
MD5 hash: e51f87c1adfc5eafc6ed4f68f4747a4d
humanhash: burger-happy-timing-apart
File name:e51f87c1adfc5eafc6ed4f68f4747a4d.exe
Download: download sample
Signature BitRAT
Create hunting rule
File size:554'530 bytes
First seen:2021-09-08 15:08:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0dbd39a8f5746474acb58d3c8fad87d0 (2 x BitRAT)
ssdeep 6144:hyR2xrmLCblc9BL8XE7zcqv7HNQNgsHEds99mC4MvBQFw9X5Nhq3:hUirmLCblc9BL8XB+7t+fHE4Rp83
Threatray 1'316 similar samples on MalwareBazaar
TLSH T1D4C49C17A6469252C2120BF08D73F4341E2FF848F8D5099B3146ED3E447E99FE9A6B1E
dhash icon b2f0f0f0b2f0f0f0 (6 x BitRAT, 4 x AsyncRAT, 2 x QuasarRAT)
Reporter abuse_ch
Tags:BitRAT exe RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
180
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e51f87c1adfc5eafc6ed4f68f4747a4d.exe
Verdict:
Malicious activity
Analysis date:
2021-09-08 15:10:09 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/c9c96b56-9519-4a30-ba47-9b2545805f85

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/186424/
Detection(s):
SecuriteInfo.com.Trojan.VbCrypt.250.14105.24159.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Launching a process
Using the Windows Management Instrumentation requests
Sending a UDP request
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Creating a process from a recently created file
Setting a global event handler
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Malware family:
AsyncRAT
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e8cb0fc0-7372-4415-b8e0-92fd5d8445c2
Result
Threat name:
AsyncRAT BitRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/847534
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Bypasses PowerShell execution policy
Connects to many ports of the same IP (likely port scanning)
Creates autostart registry keys with suspicious names
Creates files in alternative data streams (ADS)
Creates multiple autostart registry keys
Detected unpacking (changes PE section rights)
Hides threads from debuggers
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
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Script Execution From Temp Folder
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected BitRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 479969 Sample: g5MPSubdK9.exe Startdate: 08/09/2021 Architecture: WINDOWS Score: 100 63 Multi AV Scanner detection for submitted file 2->63 65 Yara detected BitRAT 2->65 67 Yara detected AntiVM3 2->67 69 7 other signatures 2->69 10 g5MPSubdK9.exe 1 2 2->10         started        14 db.exe 2->14         started        16 ao.exe 2->16         started        18 db.exe 2->18         started        process3 file4 51 C:\Users\user\AppData\Roaming\da\db.exe, PE32 10->51 dropped 79 Creates autostart registry keys with suspicious names 10->79 81 Creates multiple autostart registry keys 10->81 83 Sample uses process hollowing technique 10->83 20 RegAsm.exe 1 4 10->20         started        24 RegAsm.exe 10->24         started        26 RegAsm.exe 10->26         started        85 Multi AV Scanner detection for dropped file 14->85 87 Machine Learning detection for dropped file 14->87 89 Writes to foreign memory regions 14->89 91 2 other signatures 14->91 28 RegAsm.exe 3 14->28         started        30 RegAsm.exe 2 18->30         started        signatures5 process6 dnsIp7 55 185.157.160.147, 1973, 1975, 49739 OBE-EUROPEObenetworkEuropeSE Sweden 20->55 57 192.168.2.1 unknown unknown 20->57 47 C:\Users\user\AppData\Local\Temp\qxlhyp.exe, PE32 20->47 dropped 32 cmd.exe 1 20->32         started        file8 process9 signatures10 59 Suspicious powershell command line found 32->59 61 Bypasses PowerShell execution policy 32->61 35 powershell.exe 14 32->35         started        37 conhost.exe 32->37         started        process11 process12 39 qxlhyp.exe 1 2 35->39         started        file13 49 C:\Users\user\AppData\Roaming\al\ao.exe, PE32 39->49 dropped 71 Multi AV Scanner detection for dropped file 39->71 73 Detected unpacking (changes PE section rights) 39->73 75 Machine Learning detection for dropped file 39->75 77 Creates multiple autostart registry keys 39->77 43 qxlhyp.exe 1 1 39->43         started        signatures14 process15 file16 53 C:\Users\user\AppData\Local:08-09-2021, ASCII 43->53 dropped 93 Creates files in alternative data streams (ADS) 43->93 95 Hides threads from debuggers 43->95 signatures17
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c903da10b8241191defbb1eff45dea618f19270c72e1905e0748e75178de3a63/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2021-09-08 14:53:43 UTC
AV detection:
9 of 28 (32.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zeb5uefyeqizdxx3whx7ixpkmghrsjymolqzaxqhjdtvc6g6hjrq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
0b8a5cbe236a7057a2904f18480b85ce9b59b891c0a1a041516248d35760744d
BitRAT
16fc0cec13d88da3d0a36e4c42e733db8f1e21cafc18fd813a25cd0bc835f35a
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220bb2b7deba41f53a8d86d677691aff283314a29c27cc49b2ba396699237825
BitRAT
438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49
BitRAT
b51c07d9a4e50ac499514d378320260821bd7486acd1077a6bddf8ab70c6a2b3
BitRAT
bcf7571a4d9b25fabdc2d6120b1b2d7bd8446ea2bc3a5da1d4127954920067de
BitRAT
ceddcfa72226e91f7435facafe6631d1385ca4d246d242d5136ac4e9462b8611
BitRAT
ecb8839117d73d33390c84f7f6e02f4970156ccb2da7b48083922f60625fa8be
BitRAT
fee6cda76d8c5b289b76deba1176049e529f51ac06f817a8a22ec77b17d74f35
BitRAT
+ 1'306 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat family:bitrat family:quasar botnet:qua3 persistence rat spyware trojan
Link:
https://tria.ge/reports/210908-sjfsjahhfm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Loads dropped DLL
Downloads MZ/PE file
Executes dropped EXE
Async RAT payload
AsyncRat
BitRAT
BitRAT Payload
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
185.157.160.147:1973
yz.videomarket.eu:1972
Unpacked files
SH256 hash:
c6b1621541ddb810196632c48b6f30abb4ba266dfd2c244e06d075f825055e66
MD5 hash:
d77679ea0cba51da2b353e61d0ddb0ac
SHA1 hash:
3438728763bf11682da8b8408265cc45337d5f1b
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/f7ffb6e7-a734-48db-a625-bbc8028e8585/
SH256 hash:
c903da10b8241191defbb1eff45dea618f19270c72e1905e0748e75178de3a63
MD5 hash:
e51f87c1adfc5eafc6ed4f68f4747a4d
SHA1 hash:
ec96849ae81e9982cde0750c78422e495be2f377
Link:
https://www.unpac.me/results/f7ffb6e7-a734-48db-a625-bbc8028e8585/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c903da10b824/report/overview.html
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/c903da10b8241191defbb1eff45dea618f19270c72e1905e0748e75178de3a63

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:CN_disclosed_20180208_KeyLogger_1
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:CN_disclosed_20180208_KeyLogger_1_RID3227
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
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_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:MALWARE_Win_BitRAT
Create hunting rule
Author:ditekSHen
Description:Detects BitRAT RAT
Rule name:MALWARE_Win_QuasarRAT
Create hunting rule
Author:ditekSHen
Description:QuasarRAT payload
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:pe_imphash
Create hunting rule
Rule name:Quasar
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:Quasar_RAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_1_RID2B54
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2_RID2B55
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Vermin_Keylogger_Jan18_1
Create hunting rule
Author:Florian Roth
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/
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
Rule name:xRAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W
Rule name:xRAT_1_RID2900
Create hunting rule
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W

File information

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

Web download

BitRAT

Executable exe c903da10b8241191defbb1eff45dea618f19270c72e1905e0748e75178de3a63

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1597417/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/186424/

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