MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 10dc6cbcc3770cd94b0ca2edbfabe4b915e5b774b1a729be25853fbf7255b331. 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


STRRAT


Vendor detections: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 10dc6cbcc3770cd94b0ca2edbfabe4b915e5b774b1a729be25853fbf7255b331
SHA3-384 hash: f3fca9c7e3e8341e57362dc9aac8734614cb8ed9f51607b31cd2139948a550bf4ba44fde0766fb4bd92d530c5d3d0776
SHA1 hash: b4b3717319f29b6b489c7fbe8f9615dd560f1ca6
MD5 hash: 78c2ea2c13b2c79e06b1f48d8101e235
humanhash: louisiana-failed-potato-maryland
File name:ContractBidAgreement.jar
Download: download sample
Signature STRRAT
Create hunting rule
File size:72'290 bytes
First seen:2023-05-31 11:40:27 UTC
Last seen:2023-06-01 12:59:48 UTC
File type:Java file jar
MIME type:application/zip
ssdeep 1536:49jvwQKedLK/TbPry78puyod+YSYUqXHqQCFjeyid:gjvTm/TbjMsodf3LBfd
TLSH T18563F196BFE4D17DD2BBF238942C480F3D1B518DF354215B57C284D730948A62A7F58A
TrID 72.9% (.JAR) Java Archive (13500/1/2)
21.6% (.ZIP) ZIP compressed archive (4000/1)
5.4% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter abuse_ch
Tags:jar STRRAT


Avatar
abuse_ch
STRRAT C2:
103.212.81.160:53444

Intelligence

File Origin
# of uploads :
2
# of downloads :
129
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
strrat
Create hunting rule
ID:
1
File name:
ContractBidAgreement.jar
Verdict:
Malicious activity
Analysis date:
2023-05-31 11:40:54 UTC
Tags:
strrat rat
Link:
https://app.any.run/tasks/41781d86-2a69-458a-873d-584baf0a1772

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/394067/
Detection(s):
SecuriteInfo.com.Trojan-Spy.Java.Agent.21339.12784.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan-Spy.Java.Agent.29354.28856.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan-Spy.Java.Agent.17676.17751.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan-Spy.Java.Agent.25941.12165.UNOFFICIAL
Create hunting rule

Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6477324f4642400a7af8fd51/reports/8c2145be-8181-42cb-8ec0-b36e4f9869b9/overview
Verdict:
Malicious
Labled as:
Exploit.Zip.Heuristic
Link:
https://www.hybrid-analysis.com/sample/10dc6cbcc3770cd94b0ca2edbfabe4b915e5b774b1a729be25853fbf7255b331
Result
Threat name:
STRRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1246172
Signature
Antivirus detection for URL or domain
Creates autostart registry keys to launch java
Exploit detected, runtime environment starts unknown processes
Found malware configuration
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Snort IDS alert for network traffic
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AllatoriJARObfuscator
Yara detected STRRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 879210 Sample: ContractBidAgreement.jar Startdate: 31/05/2023 Architecture: WINDOWS Score: 100 78 Snort IDS alert for network traffic 2->78 80 Found malware configuration 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 7 other signatures 2->84 9 cmd.exe 2 2->9         started        13 javaw.exe 2 2->13         started        15 javaw.exe 2->15         started        17 3 other processes 2->17 process3 file4 70 C:\cmdlinestart.log, ASCII 9->70 dropped 88 Uses schtasks.exe or at.exe to add and modify task schedules 9->88 19 java.exe 2 9 9->19         started        24 conhost.exe 9->24         started        signatures5 process6 dnsIp7 72 192.168.2.1 unknown unknown 19->72 64 C:\Users\user\...\ContractBidAgreement.jar, Zip 19->64 dropped 66 C:\Users\user\...\ContractBidAgreement.jar, Zip 19->66 dropped 68 C:\ProgramData\...\ContractBidAgreement.jar, Zip 19->68 dropped 86 Creates autostart registry keys to launch java 19->86 26 java.exe 4 19->26         started        29 cmd.exe 1 19->29         started        31 icacls.exe 1 19->31         started        file8 signatures9 process10 dnsIp11 74 bullionvan.duckdns.org 103.212.81.160, 49721, 53444 KANTIPUR-AS-APKantipurPublicationPvtLtdNP Bangladesh 26->74 76 ip-api.com 208.95.112.1, 49722, 80 TUT-ASUS United States 26->76 33 cmd.exe 1 26->33         started        35 cmd.exe 1 26->35         started        37 cmd.exe 1 26->37         started        45 2 other processes 26->45 39 conhost.exe 29->39         started        41 schtasks.exe 1 29->41         started        43 conhost.exe 31->43         started        process12 process13 47 WMIC.exe 1 33->47         started        50 conhost.exe 33->50         started        52 WMIC.exe 1 35->52         started        54 conhost.exe 35->54         started        56 WMIC.exe 1 37->56         started        58 conhost.exe 37->58         started        60 WMIC.exe 1 45->60         started        62 conhost.exe 45->62         started        signatures14 90 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 47->90
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/10dc6cbcc3770cd94b0ca2edbfabe4b915e5b774b1a729be25853fbf7255b331/
Threat name:
ByteCode-JAVA.Trojan.Strrat
Create hunting rule
Status:
Malicious
First seen:
2023-05-31 11:41:05 UTC
File Type:
Binary (Archive)
Extracted files:
25
AV detection:
14 of 37 (37.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cdogzpgdo4gnssymulw37k7exek6ln3uwgtstprfqu7364svwmyq._file
Result
Malware family:
strrat
Create hunting rule
Score:
  10/10
Tags:
family:strrat persistence stealer trojan
Link:
https://tria.ge/reports/230531-ntewrsef59/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Adds Run key to start application
Looks up external IP address via web service
Drops startup file
STRRAT
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.30
Link:
https://yomi.yoroi.company/submissions/10dc6cbcc3770cd94b0ca2edbfabe4b915e5b774b1a729be25853fbf7255b331

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/394067/

Comments