d56a514ea1f08de98b8ae58726f6fd61a163509557f1debeb84fce68bc473ba4

General

Target
jaffacakes118_Trojan.Win32.Cnopa.em.exe
Size 873KB
Sample261018-2e8geswtcs
SHA256 d56a514ea1f08de98b8ae58726f6fd61a163509557f1debeb84fce68bc473ba4
MD5 748c7e2883a5cda850896b866e4e3e9e
SHA1 75ab7e790bc14b772f60558d1572bf956af53bd4
SHA512 32a23bdb9174d748a1ba8d0d32554cea9cb411d1cd7202f8dc0f694a2f22954e8616fd711fb21b019d630e2c4a505dec0b416fbc17e28ac2bf00817cc134cc97
SSDEEP 12288:TtWr+uECFnvXmnES1DyAvYHgBTPAE15qBFNZ6IJdJaT/xnmF:HsvmnJuAvYABTPB15QIc2jp4
TLSH
T1F015CF28340A1105D2E5C8376623C9D5DF1C1D9F1BA2EAE51E4A057D36EED22BDF0E2E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery execution

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\Control Panel\International\Geo\Nation	753B.tmp.exe
Key value queried	\REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\Control Panel\International\Geo\Nation	jaffacakes118_Trojan.Win32.Cnopa.em.exe

Executes dropped EXE 1 IoCs

pid	Process
2228	753B.tmp.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
460	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	753B.tmp.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	753B.tmp.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	jaffacakes118_Trojan.Win32.Cnopa.em.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_Trojan.Win32.Cnopa.em.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_Trojan.Win32.Cnopa.em.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	753B.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
460	cmd.exe
4208	PING.EXE

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
416	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4208	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	416	taskkill.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 2228	1576	jaffacakes118_Trojan.Win32.Cnopa.em.exe	87
PID 2228 wrote to memory of 460	2228	753B.tmp.exe	88
PID 460 wrote to memory of 416	460	cmd.exe	90
PID 460 wrote to memory of 4208	460	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Cnopa.em.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Cnopa.em.exe"
1⤵
- Checks computer location settings
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\AppData\Local\Temp\753B.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\753B.tmp.exe" --stid="" --onl
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2228
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c taskkill /f /pid 2228 & for /l %x in (1,1,60) do ( ping 127.0.0.1 -n 2 -w 500 & del /q /f "C:\Users\Admin\AppData\Local\Temp\753B.tmp.exe" & if not exist "C:\Users\Admin\AppData\Local\Temp\753B.tmp.exe" ( exit ) )
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:460
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /pid 2228
      4⤵
      System Location Discovery: System Language Discovery
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:416
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 2 -w 500
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4208

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

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

2

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

753B.tmp.exe

Path C:\Users\Admin\AppData\Local\Temp\753B.tmp.exe
Size 873KB
SHA256 d56a514ea1f08de98b8ae58726f6fd61a163509557f1debeb84fce68bc473ba4
MD5 748c7e2883a5cda850896b866e4e3e9e
SHA1 75ab7e790bc14b772f60558d1572bf956af53bd4
SHA512 32a23bdb9174d748a1ba8d0d32554cea9cb411d1cd7202f8dc0f694a2f22954e8616fd711fb21b019d630e2c4a505dec0b416fbc17e28ac2bf00817cc134cc97
SSDEEP 12288:TtWr+uECFnvXmnES1DyAvYHgBTPAE15qBFNZ6IJdJaT/xnmF:HsvmnJuAvYABTPB15QIc2jp4
TLSH
T1F015CF28340A1105D2E5C8376623C9D5DF1C1D9F1BA2EAE51E4A057D36EED22BDF0E2E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1576-0-0x0000000000650000-0x0000000000652000-memory.dmp

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memory/1576-11-0x0000000000400000-0x00000000004D9000-memory.dmp

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memory/2228-13-0x0000000000400000-0x00000000004D9000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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