44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24

General

Target
jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe
Size 188KB
Sample261002-j2xpbsdd86
SHA256 44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24
MD5 75a62874049f2667fd02d75ecd2ab9b7
SHA1 6e7e7b31a417e46292395c4ddb60cec3c7af2bde
SHA512 674b4fb9bdd8ad33df8f272fd1f36ecc29c0f420842218de6ca8c33ba18142d920a5590dc0053bf064441027e3ca75da8a2c3d186f37a2cbb1e6d87df0b10015
SSDEEP 3072:96K0uoqyfmUqp/4gSDIYuWsDxQWP8JdLc4iJxK3:8J69
TLSH
T14C14C73D6CBF493BD2B0C6B5CB9484AABD54E1B631124C3654D39F44C62BA836ED213E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4516	netprotocol.exe
2232	netprotocol.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1696934516-3600988056-1840298893-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Netprotocol = "C:\\Users\\Admin\\AppData\\Roaming\\netprotocol.exe"	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 832 set thread context of 3504	832	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe	89
PID 4516 set thread context of 2232	4516	netprotocol.exe	91

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3504-4-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/3504-6-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/3504-7-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/3504-8-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/3504-21-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2232-22-0x0000000000400000-0x0000000000425000-memory.dmp	upx

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	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	netprotocol.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	netprotocol.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netprotocol.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
832	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe
4516	netprotocol.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 832 wrote to memory of 3504	832	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe	89
PID 832 wrote to memory of 3504	832	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe	89
PID 832 wrote to memory of 3504	832	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe	89
PID 832 wrote to memory of 3504	832	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe	89
PID 3504 wrote to memory of 4516	3504	jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe	90
PID 4516 wrote to memory of 2232	4516	netprotocol.exe	91
PID 4516 wrote to memory of 2232	4516	netprotocol.exe	91
PID 4516 wrote to memory of 2232	4516	netprotocol.exe	91
PID 4516 wrote to memory of 2232	4516	netprotocol.exe	91

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:832
- C:\Users\Admin\AppData\Local\Temp\jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe
  "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_44fbb5c3c9a1f78d6c43d763c77a9d34b7036aea7123fbef804efb1d2f2d9b24.exe"
  2⤵
  - Adds Run key to start application
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3504
- - C:\Users\Admin\AppData\Roaming\netprotocol.exe
    C:\Users\Admin\AppData\Roaming\netprotocol.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4516
  - - C:\Users\Admin\AppData\Roaming\netprotocol.exe
      "C:\Users\Admin\AppData\Roaming\netprotocol.exe"
      4⤵
      Executes dropped EXE
      Reads the TCP/IP host and domain name from the registry
      PID:2232

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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

netprotocol.exe

Path C:\Users\Admin\AppData\Roaming\netprotocol.exe
Size 188KB
SHA256 fe138d02848cd6bac9d3fa5640fa9f1a56f160fd51495fcbf69bbfb1e37593d9
MD5 67c25c530c37974c3ede633d4fa959a9
SHA1 46816f537697d4068eb5407533bc7151ed0a4e0e
SHA512 c7f5ae7cffd2d7299de24e81591224b4f0d3d3f778d49203bcbfefad900a987ca6cb34e61b6635e0d508c28b5d88eff8ea1de395055472fad4b899d9a50477db
SSDEEP 3072:K6K0uoqyfmUqp/4gSDIYuWsDxQWP8JdLc4iJxK3:hJ69
TLSH
T1B714C73D6CBF493BD2B0C6B5CB9484AABD54E1B631124C3654D39F44C62BA836ED213E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/832-0-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2232-22-0x0000000000400000-0x0000000000425000-memory.dmp

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memory/3504-4-0x0000000000400000-0x0000000000425000-memory.dmp

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memory/3504-6-0x0000000000400000-0x0000000000425000-memory.dmp

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memory/3504-7-0x0000000000400000-0x0000000000425000-memory.dmp

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memory/3504-8-0x0000000000400000-0x0000000000425000-memory.dmp

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memory/3504-21-0x0000000000400000-0x0000000000425000-memory.dmp

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memory/4516-13-0x0000000000400000-0x000000000042F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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