9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d

General

Target
jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe
Size 1.4MB
Sample260925-vvarrssane
SHA256 9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d
MD5 a1769fb921607f899d922fc7d327582e
SHA1 d38331b376159a98de08d8f4fa14f62667ee0e41
SHA512 9209c5bfaac559481462de32cd475d4da79665a0c2305933005b3580aaa3a26c1924081af1b77adbc073622b47014bfe72fb425dfc54ee1284aebdc08ab1f795
SSDEEP 1536:YQuXTOh8seph64V4AznNZf6sFxX8U4eyNA8i:m+8TZVBbNJF3TR8i
TLSH
T151656BD4381262B9D36BE9BFC1601CB7DDE534258F61D67E6829F44E61F20B24A2C332
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery persistence spyware stealer upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe \"C:\\Users\\Admin\\AppData\\Roaming\\njvloxjdo1txmph3dop3bgisjlendfn2\\csrss.exe\""	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe

Modifies firewall policy service 3 TTPs 5 IoCs

defense_evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe:*:Enabled:ldrsoft"	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\explorer.exe = "C:\\Windows\\explorer.exe:*:Enabled:ldrsoft"	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2888-1-0x0000000000400000-0x0000000000574000-memory.dmp	upx

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2888	jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_9091acfb20a9cf1acfb053ebc9d981fbcac8e2c622459f1a77f029e3cec4e19d.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies firewall policy service
- Checks BIOS information in registry
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
PID:2888