81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68

General

Target

81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe
Size

168KB
MD5

f17a3789fe6fa4ac2e7502dfa42a91c2
SHA1

53d86ffc2bb5da07127060da5eb13f5cb10b6260
SHA256

81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68
SHA512

6e5b25879179301876fb7285c4812735ef1bbe0f53d7a93bdb5309252f7c1697f66d4ef9432ede29669f07835569360df09fdaec27defba14c924d8bb73ab5b2
SSDEEP

3072:nk0M4eOOYQVdD02rbqD5ppAB/zfvfd0tV4b5zeJBNH785PnwJUVBc:nGYQPxb+5pmHfd6V4FyHNfJL

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Aatztz = "C:\\Users\\Admin\\AppData\\Roaming\\Aatztz.exe"	iexplore.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\D:	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 8 set thread context of 4156	8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	82

Modifies Internet Explorer settings 1 TTPs 11 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{450704AA-6F9A-11ED-919F-E2CDD1D11107} = "0"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4156	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe
4156	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe
4156	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4156	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe
Token: SeDebugPrivilege	3356	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2856	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe
2856	IEXPLORE.EXE
2856	IEXPLORE.EXE
4232	IEXPLORE.EXE
4232	IEXPLORE.EXE
4232	IEXPLORE.EXE
4232	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 8 wrote to memory of 4156	8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	82
PID 8 wrote to memory of 4156	8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	82
PID 8 wrote to memory of 4156	8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	82
PID 8 wrote to memory of 4156	8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	82
PID 8 wrote to memory of 4156	8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	82
PID 8 wrote to memory of 4156	8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	82
PID 8 wrote to memory of 4156	8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	82
PID 8 wrote to memory of 4156	8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	82
PID 8 wrote to memory of 4156	8	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	82
PID 4156 wrote to memory of 3356	4156	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	85
PID 4156 wrote to memory of 3356	4156	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	85
PID 4156 wrote to memory of 3356	4156	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	85
PID 4156 wrote to memory of 3356	4156	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	85
PID 4156 wrote to memory of 3356	4156	81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe	85
PID 3356 wrote to memory of 2856	3356	iexplore.exe	87
PID 3356 wrote to memory of 2856	3356	iexplore.exe	87
PID 3356 wrote to memory of 2856	3356	iexplore.exe	87
PID 2856 wrote to memory of 4232	2856	IEXPLORE.EXE	89
PID 2856 wrote to memory of 4232	2856	IEXPLORE.EXE	89
PID 2856 wrote to memory of 4232	2856	IEXPLORE.EXE	89

C:\Users\Admin\AppData\Local\Temp\81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe
"C:\Users\Admin\AppData\Local\Temp\81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:8
- C:\Users\Admin\AppData\Local\Temp\81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe
  "C:\Users\Admin\AppData\Local\Temp\81cbf233e7cd343baf8f2c6e2e680a00e4bb735618c27e7cc543a5968abe1a68.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4156
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Adds Run key to start application
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3356
  - - C:\Program Files\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2856
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2856 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4232

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4156-134-0x0000000000000000-mapping.dmp

Download
memory/4156-135-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4156-137-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4156-138-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4156-139-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4156-140-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads