2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26

General

Target

2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Size

6.0MB
MD5

27e0a52f211b07f18551d55337e0ccd6
SHA1

439a358232c8dc04467a450530b3a191149684df
SHA256

2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26
SHA512

2bd7cbc4062a2e69f8e8b877835e89ccbe15a05c2a712f435f8670c9f53a4bf70a6e867571a15abfb126483a36f559fd0c9c4c0a26cfe73aae5f001de8bc5465
SSDEEP

196608:TwF0LLZedzOTbLAf0N0/0BykcAX6jmuyz7i8Bt:TacTbcftZAX6jPy68

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1896	sg.tmp
3236	DocBox.exe

Loads dropped DLL 1 IoCs

pid	Process
3236	DocBox.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/396-0-0x0000000000400000-0x0000000000588000-memory.dmp	upx
behavioral2/memory/396-224-0x0000000000400000-0x0000000000588000-memory.dmp	upx

Checks system information in the registry 2 TTPs 2 IoCs

System 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\SYSTEM\ControlSet001\Control\SystemInformation\SystemManufacturer	DocBox.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemProductName	DocBox.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 2 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	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DocBox.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor 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\CentralProcessor\ProcessorNameString	DocBox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	DocBox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	DocBox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor	DocBox.exe

Enumerates system info in registry 2 TTPs 5 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	DocBox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	DocBox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	DocBox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	DocBox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	DocBox.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	DocBox.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\DocBox.exe = "11001"	DocBox.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeBackupPrivilege	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Token: SeRestorePrivilege	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Token: 33	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Token: SeIncBasePriorityPrivilege	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Token: 33	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Token: SeIncBasePriorityPrivilege	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Token: 33	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Token: SeIncBasePriorityPrivilege	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Token: SeRestorePrivilege	1896	sg.tmp
Token: 35	1896	sg.tmp
Token: SeSecurityPrivilege	1896	sg.tmp
Token: SeSecurityPrivilege	1896	sg.tmp
Token: 33	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
Token: SeIncBasePriorityPrivilege	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3236	DocBox.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 3600	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe	87
PID 396 wrote to memory of 3600	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe	87
PID 396 wrote to memory of 1896	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe	89
PID 396 wrote to memory of 1896	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe	89
PID 396 wrote to memory of 1896	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe	89
PID 396 wrote to memory of 3236	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe	91
PID 396 wrote to memory of 3236	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe	91
PID 396 wrote to memory of 3236	396	2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe	91

C:\Users\Admin\AppData\Local\Temp\2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe
"C:\Users\Admin\AppData\Local\Temp\2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:396
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c set
  2⤵
  PID:3600
- C:\Users\Admin\AppData\Local\Temp\~3723364304916740346~\sg.tmp
  7zG_exe x "C:\Users\Admin\AppData\Local\Temp\2e255b135e7d6b5689d00c77213d76ad7a81824398f1b6f896f708c7ff68dd26.exe" -y -aoa -o"C:\Users\Admin\AppData\Local\Temp\~6927167502316901144"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1896
- C:\Users\Admin\AppData\Local\Temp\~6927167502316901144\DocBox.exe
  "C:\Users\Admin\AppData\Local\Temp\~6927167502316901144\DocBox.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks system information in the registry
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  PID:3236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

3

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\~3723364304916740346~\sg.tmp

Filesize
715KB

MD5
7c4718943bd3f66ebdb47ccca72c7b1e

SHA1
f9edfaa7adb8fa528b2e61b2b251f18da10a6969

SHA256
4cc32d00338fc7b206a7c052297acf9ac304ae7de9d61a2475a116959c1524fc

SHA512
e18c40d646fa4948f90f7471da55489df431f255041ebb6dcef86346f91078c9b27894e27216a4b2fe2a1c5e501c7953c77893cf696930123d28a322d49e1516

Download Submit
C:\Users\Admin\AppData\Local\Temp\~6927167502316901144\DocBox.exe

Filesize
6.3MB

MD5
483caddd498fa1983428fd9f15afa4f2

SHA1
cbc0d77e01e3e6e8821a4e2e1764c086b8a725ab

SHA256
01aed8507b69d3e30a24ca7790ab868b1f7a50ea012bd822c685bedf241d9fd0

SHA512
d01d9ba04aef17e14f139bcdaec66146a413c58259f55f138bf2dc8f9705e45944d822f724d6f0e49ec1fea5607c5f1961b71673f11c48d5775ff2e299691e7e

Download Submit
C:\Users\Admin\AppData\Local\Temp\~6927167502316901144\libdocbox.dll

Filesize
6.2MB

MD5
ad3f7d20063342ca9cbb01c835e6a7c4

SHA1
e3bb16b16bb876f25491da6760ccb38912af1c5a

SHA256
c55976cde75bc886f7bae7a1c42fdb7b0a135bd5bba6d82db40cdfeb224bf3a0

SHA512
a702416f280756d98300da3cf31098a985c4e0f66c4140f640df08428fcd2b7c0ca3dd26a1fef138ca1c71acc9bbc8adeb7f24260a794f71675da62f8718d124

Download Submit
memory/396-0-0x0000000000400000-0x0000000000588000-memory.dmp

Filesize
1.5MB

Download
memory/396-224-0x0000000000400000-0x0000000000588000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads