6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba

General

Target
jaffacakes118_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe
Size 252KB
Sample260930-lt9p2aca74
SHA256 6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba
MD5 012bd45076ed784d260fe31e964b01d3
SHA1 8249906bdf93351d06cdc21a9b3bbc0499452674
SHA512 b8b0e8c997dc211d5a23984d1e464179f8281669aa35224193a1ea574482c7c914719cfe4b302804805ada9e0df11766d0c3359fb7c75f712ef289060b9e79a7
SSDEEP 3072:+tDPzmx8qPWPAtfxVPZtgKhovVa4XXXEBK0abyN/3lC/pErlj5iEP+Er3RMF1yA+:+tDPauPAtAKYVa4UesYEtS2RMF1O
TLSH
T17C449E1273E0CCB7D65700324DE29BFBB2B9FA504E328B5363845F0D9E32996973A165
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3212	usrpack32.exe
5364	usrpack32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\usrpack32.exe	jaffacakes118_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
1708	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 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\Hostname	usrpack32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	usrpack32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	jaffacakes118_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	usrpack32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	usrpack32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	252	jaffacakes118_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
252	jaffacakes118_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe
3212	usrpack32.exe
5364	usrpack32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 252 wrote to memory of 3212	252	jaffacakes118_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe	90
PID 252 wrote to memory of 1708	252	jaffacakes118_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe	91

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba.exe"
1⤵
- Drops file in System32 directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:252
- C:\Windows\SysWOW64\usrpack32.exe
  "C:\Windows\system32\usrpack32.exe" /setup
  2⤵
  - Executes dropped EXE
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3212
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Delete.bat" "
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:1708

C:\Windows\SysWOW64\usrpack32.exe
"C:\Windows\SysWOW64\usrpack32.exe" /service
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:5364

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:1980

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Delete.bat

Path C:\Delete.bat
Size 295B
SHA256 d103d633ec51c134e289f67b4e2148fa740613bba86ba15e6d4eb16937665725
MD5 310baf717ccc45adfc0daaefea55da6d
SHA1 bbda446c5e2721f2465aef9872be290aef8ba41b
SHA512 cdcf17e52b7c15894aa90ae62bba3b5426a809cd018552daafffacc4288b85f70f455bf20464b9b9764b92b97a6a8df8876155d1d0897c001afa721ae03885d5
TLSH
T118E0865472B18F5E144E951B41A12E0E44A5ECD859CE1E20A62281D461A586CB546B16
MD5 SHA1 SHA512 TLSH

Submit Download

usrpack32.exe

Path C:\Windows\SysWOW64\usrpack32.exe
Size 252KB
SHA256 6aa3dcff72791783c3d24e21e9db2c9eb4183d7774a6f62e26093902e2958cba
MD5 012bd45076ed784d260fe31e964b01d3
SHA1 8249906bdf93351d06cdc21a9b3bbc0499452674
SHA512 b8b0e8c997dc211d5a23984d1e464179f8281669aa35224193a1ea574482c7c914719cfe4b302804805ada9e0df11766d0c3359fb7c75f712ef289060b9e79a7
SSDEEP 3072:+tDPzmx8qPWPAtfxVPZtgKhovVa4XXXEBK0abyN/3lC/pErlj5iEP+Er3RMF1yA+:+tDPauPAtAKYVa4UesYEtS2RMF1O
TLSH
T17C449E1273E0CCB7D65700324DE29BFBB2B9FA504E328B5363845F0D9E32996973A165
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/252-0-0x0000000000400000-0x0000000000443000-memory.dmp

Download

memory/5364-12-0x0000000000400000-0x0000000000443000-memory.dmp