7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177

General

Target

7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe
Size

376KB
MD5

003e82acfade255e85ce31b5f4b33f99
SHA1

56742e53e2524681e34fea5cb50ae5347d85799c
SHA256

7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177
SHA512

0ffcf72ab29d825804d4edadcac811b3806e87cb6c98938df513b6f1bf600f862d98ecc4ae14ed9dc6bac4018fbc8458a4c7546c03a377e3e027d8434e05f52c
SSDEEP

6144:5VxTm+hk60Cs5ZgdrbTmQihXYoespfScvrSUDfj6RxEVsgABMrNg84PPuxM5nMYg:xT5qCKG2YoeiSorSUDfj6R6sKpDQeYAf

Score

8^/10

discovery evasion persistence trojan

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\peemtb = "C:\\Windows\\SysWOW64\\dskquotaz.exe"	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	dskquotaz.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	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe

Deletes itself 1 IoCs

pid	Process
2616	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	dskquotaz.exe

Loads dropped DLL 2 IoCs

pid	Process
2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe
2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dskquotaz.exe	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe
File opened for modification	C:\Windows\SysWOW64\dskquotaz.exe	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe

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

System Information Discovery
T1082

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	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dskquotaz.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2576	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe
2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2788	dskquotaz.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2788	2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe	30
PID 2272 wrote to memory of 2788	2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe	30
PID 2272 wrote to memory of 2788	2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe	30
PID 2272 wrote to memory of 2788	2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe	30
PID 2788 wrote to memory of 2576	2788	dskquotaz.exe	32
PID 2788 wrote to memory of 2576	2788	dskquotaz.exe	32
PID 2788 wrote to memory of 2576	2788	dskquotaz.exe	32
PID 2788 wrote to memory of 2576	2788	dskquotaz.exe	32
PID 2272 wrote to memory of 2616	2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe	34
PID 2272 wrote to memory of 2616	2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe	34
PID 2272 wrote to memory of 2616	2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe	34
PID 2272 wrote to memory of 2616	2272	7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe	34

C:\Users\Admin\AppData\Local\Temp\7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe
"C:\Users\Admin\AppData\Local\Temp\7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe"
1⤵
- Adds policy Run key to start application
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\dskquotaz.exe
  C:\Windows\SysWOW64\dskquotaz.exe
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Windows\SysWOW64\ipconfig.exe
    "C:\Windows\system32\ipconfig.exe" /flushdns
    3⤵
    - System Location Discovery: System Language Discovery
    - Gathers network information
    PID:2576
- C:\Windows\SysWOW64\cmd.exe
  /c C:\Users\Admin\AppData\Local\Temp\~unins2344.bat "C:\Users\Admin\AppData\Local\Temp\7912a84dabaf13a615d7ba87a1ff40caf1071361e9cee05633f79a6b36d65177.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

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

Query Registry

2

T1012

System Information Discovery

4

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\~unins2344.bat

Filesize
49B

MD5
9e0a2f5ab30517809b95a1ff1dd98c53

SHA1
5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

SHA256
97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

SHA512
e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

Download Submit
\Windows\SysWOW64\dskquotaz.exe

Filesize
124KB

MD5
7b18c153dc6396c6b547c17c45cdba94

SHA1
30fb6552c2a5c8bee0b5f9f244ea9e577d78db97

SHA256
e989512d646cb6a84bb5a56c18231228bb126aff98d2eb0e8b5c97c20af6bef0

SHA512
400b056ade099ab7fdedaee0c0bb68d3a07c518a82a9e7c90e6f4538dc3d02a2ea0d567d5cb138a359fac39ed639deb90c88c012c860de5075b4697e983b02e3

Download Submit
memory/2272-0-0x0000000000412000-0x00000000004A6000-memory.dmp

Filesize
592KB

Download
memory/2272-1-0x00000000004B0000-0x0000000000544000-memory.dmp

Filesize
592KB

Download
memory/2272-5-0x0000000000400000-0x00000000004A7000-memory.dmp

Filesize
668KB

Download
memory/2272-25-0x0000000000412000-0x00000000004A6000-memory.dmp

Filesize
592KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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