1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e

Analysis

max time kernel
150s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
04/10/2022, 02:32

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General

Target

1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe
Size

70KB
MD5

01510cfb2ae118995d96dcc34a1dc302
SHA1

cf59ca74ebe21640e3bcae6777c5980a4ff7506f
SHA256

1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e
SHA512

bf061ff431fd2565bf6f9bd522a90a8d096db3eecbcc15b4265719f73c4af06abe6ca744e0d8c540de48ecdba07b2e4e7db843af1ce22ac70dd65b0b1b9a6bff
SSDEEP

768:qW+SOHPfOxK2Xy9ojV3cKuAAAAAAA777v777BrZD0mihYiPZTK6zebY5AawLB:+xvfOdXemV3cq1D0mYxPxR3AawLB

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\skype.dat"	svchost.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/948-56-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/948-58-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/948-59-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/948-63-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/948-65-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/948-64-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/948-66-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/948-67-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
948	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe
768	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2028 set thread context of 948	2028	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe	27

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe
768	svchost.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
948	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe
948	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
296	ctfmon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
768	svchost.exe
768	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 948	2028	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe	27
PID 2028 wrote to memory of 948	2028	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe	27
PID 2028 wrote to memory of 948	2028	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe	27
PID 2028 wrote to memory of 948	2028	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe	27
PID 2028 wrote to memory of 948	2028	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe	27
PID 2028 wrote to memory of 948	2028	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe	27
PID 2028 wrote to memory of 948	2028	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe	27
PID 2028 wrote to memory of 948	2028	1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe	27
PID 768 wrote to memory of 296	768	svchost.exe	29
PID 768 wrote to memory of 296	768	svchost.exe	29
PID 768 wrote to memory of 296	768	svchost.exe	29
PID 768 wrote to memory of 296	768	svchost.exe	29

C:\Users\Admin\AppData\Local\Temp\1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe
"C:\Users\Admin\AppData\Local\Temp\1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe
  "C:\Users\Admin\AppData\Local\Temp\1303d3f143eb59b87228df0d289ec45ffbc473c4c5e8be539cbc95504413e65e.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: MapViewOfSection
  PID:948

C:\Windows\syswow64\svchost.exe
"C:\Windows\syswow64\svchost.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:768
- C:\Windows\SysWOW64\ctfmon.exe
  ctfmon.exe
  2⤵
  - Suspicious use of FindShellTrayWindow
  PID:296

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/768-68-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/948-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/948-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/948-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/948-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/948-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/948-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/948-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/948-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/948-67-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1400-70-0x0000000077660000-0x0000000077809000-memory.dmp

Filesize
1.7MB

Download
memory/1400-71-0x00000000026E0000-0x00000000026E7000-memory.dmp

Filesize
28KB

Download
memory/1400-72-0x0000000077660000-0x0000000077809000-memory.dmp

Filesize
1.7MB

Download
memory/2028-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2028-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download