MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a3cfa2c1eca307047e5ac1d9b9046064bdad17641ee08d6eee919dc36a80ca3. 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: 5


Intelligence 5 IOCs 1 YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a3cfa2c1eca307047e5ac1d9b9046064bdad17641ee08d6eee919dc36a80ca3
SHA3-384 hash: 0dd8c2248207189d04f5de24b3d9dfce5ede21d431dd55a597b21ec6edebd6a82040b5720d5a24610acd7d7d1d68c651
SHA1 hash: 1219651cb85920a609fe07a913800c3bca2173a8
MD5 hash: dc550751fff2488186c51f5307d5f633
humanhash: white-hamper-five-whiskey
File name:list3503-purchase-order-12-04-21.pdf.jar
Download: download sample
Signature STRRAT
Create hunting rule
File size:194'726 bytes
First seen:2021-04-12 14:00:38 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 3072:zt/KxYCjMxrVg69tl+bFoQWjz9irQdghGv2KdyBa3Lg9wi5JfVxO3uFC:BSZMxrVJyFoHz98QGw2K0BKLw5lVxO3T
TLSH DA14234725B980ABD2594736B5B213E2A7472C9D5E2173DC0F16231EFA82D1DC7F0AB8
Reporter abuse_ch
Tags:jar STRRAT


Avatar
abuse_ch
STRRAT C2:
79.134.225.104:4141

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
79.134.225.104:4141 https://threatfox.abuse.ch/ioc/7799/

Intelligence

File Origin
# of uploads :
1
# of downloads :
151
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
list3503-purchase-order-12-04-21.pdf.jar
Verdict:
No threats detected
Analysis date:
2021-04-12 14:07:58 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a5542647-cfdf-470d-9b7c-e6e01982b67f

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/133780/
Detection(s):
SecuriteInfo.com.Trojan.Script.Heuristic-js.iacgm.2148.28591.UNOFFICIAL
Create hunting rule

Result
Threat name:
STRRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/673142
Signature
Exploit detected, runtime environment dropped PE file
Exploit detected, runtime environment starts unknown processes
May check the online IP address of the machine
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses 7zip to decompress a password protected archive
Uses an obfuscated file name to hide its real file extension (double extension)
Uses regedit.exe to modify the Windows registry
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: 385522 Sample: list3503-purchase-order-12-... Startdate: 12/04/2021 Architecture: WINDOWS Score: 100 93 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->93 95 Yara detected STRRAT 2->95 97 Uses an obfuscated file name to hide its real file extension (double extension) 2->97 99 4 other signatures 2->99 12 cmd.exe 2 2->12         started        14 cmd.exe 1 2->14         started        17 notepad.exe 2->17         started        19 notepad.exe 2->19         started        process3 signatures4 21 java.exe 6 12->21         started        23 conhost.exe 12->23         started        109 Uses 7zip to decompress a password protected archive 14->109 25 7za.exe 10 14->25         started        process5 process6 27 wscript.exe 3 3 21->27         started        31 icacls.exe 1 21->31         started        file7 75 C:\Users\user\...\ebgeaegdbdecaedfebace.reg, ASCII 27->75 dropped 101 Uses regedit.exe to modify the Windows registry 27->101 33 javaw.exe 26 27->33         started        36 regedit.exe 27->36         started        38 conhost.exe 31->38         started        signatures8 process9 dnsIp10 81 github.com 140.82.121.4, 443, 49705 GITHUBUS United States 33->81 83 github-releases.githubusercontent.com 185.199.110.154, 443, 49709 FASTLYUS Netherlands 33->83 85 3 other IPs or domains 33->85 40 java.exe 2 21 33->40         started        process11 file12 71 C:\Users\user\AppData\...\sxwyrmnsgk.txt, Zip 40->71 dropped 73 C:\Users\user\...\jna2351218120659860063.dll, PE32 40->73 dropped 43 java.exe 40->43         started        48 cmd.exe 40->48         started        50 conhost.exe 40->50         started        process13 dnsIp14 87 79.134.225.104, 4141, 49719, 49725 FINK-TELECOM-SERVICESCH Switzerland 43->87 89 ip-api.com 208.95.112.1, 49724, 80 TUT-ASUS United States 43->89 91 str-master.pw 43->91 77 sqlite-3.14.2.1-0f...64e4-sqlitejdbc.dll, PE32 43->77 dropped 79 C:\Users\user\...\jna7466339441401182192.dll, PE32 43->79 dropped 103 Tries to steal Mail credentials (via file access) 43->103 105 Tries to harvest and steal browser information (history, passwords, etc) 43->105 52 cmd.exe 43->52         started        54 cmd.exe 43->54         started        56 conhost.exe 43->56         started        107 Uses schtasks.exe or at.exe to add and modify task schedules 48->107 58 conhost.exe 48->58         started        60 schtasks.exe 48->60         started        file15 signatures16 process17 process18 62 WMIC.exe 52->62         started        65 conhost.exe 52->65         started        67 conhost.exe 54->67         started        69 WMIC.exe 54->69         started        signatures19 111 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 62->111
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8a3cfa2c1eca307047e5ac1d9b9046064bdad17641ee08d6eee919dc36a80ca3/
Threat name:
ByteCode-JAVA.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-04-12 14:01:08 UTC
AV detection:
1 of 48 (2.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ri6pula6ziyhar7fvqozxecgazf5vulwihxarvxo5em5ynvibsrq._file
Result
Malware family:
strrat
Create hunting rule
Score:
  10/10
Tags:
family:strrat persistence stealer trojan
Link:
https://tria.ge/reports/210412-hkcb8nxzp2/
Behaviour
Creates scheduled task(s)
Modifies registry class
Runs .reg file with regedit
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Adds Run key to start application
Looks up external IP address via web service
Drops startup file
Loads dropped DLL
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/8a3cfa2c1eca307047e5ac1d9b9046064bdad17641ee08d6eee919dc36a80ca3

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/133780/

Comments