cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582

Analysis

max time kernel
144s
max time network
125s
platform
windows7_x64
resource
win7v20201028
submitted
09/11/2020, 21:33

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General

Target
cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe
Size 10.1MB
Sample201109-bdl4d83rae
SHA256 cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582
MD5 6b4e1dadf79b7ba387414ac7c89911da
SHA1 545803fc56f0107c4b09f01712a745c4bc3bffc2
SHA512 3c5d70ec0ff67a36fdb752c6ecea7233cca3d3f5ffceca9078134442e223efc9ec94bc232ff00557ef3affed95d1876a1400e0d353dd0c7eedbd9a1a8fa57c65
MD5 SHA1 SHA512

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Creates new service(s) 1 TTPs
persistence

New Service
T1050

Executes dropped EXE 1 IoCs

pid	Process
1624	klxoaejf.exe

Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

Deletes itself 1 IoCs

pid	Process
1092	cmd.exe

Modifies service 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Shas	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Qecs	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\napagent\LocalConfig\UI	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\LocalConfig	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\napagent\LocalConfig\Enroll\HcsGroups	netsh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1624 set thread context of 1164	1624	klxoaejf.exe	44

Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 2000	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	27
PID 1080 wrote to memory of 2000	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	27
PID 1080 wrote to memory of 2000	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	27
PID 1080 wrote to memory of 2000	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	27
PID 1080 wrote to memory of 1456	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	31
PID 1080 wrote to memory of 1456	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	31
PID 1080 wrote to memory of 1456	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	31
PID 1080 wrote to memory of 1456	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	31
PID 1080 wrote to memory of 1576	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	33
PID 1080 wrote to memory of 1576	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	33
PID 1080 wrote to memory of 1576	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	33
PID 1080 wrote to memory of 1576	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	33
PID 1080 wrote to memory of 652	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	35
PID 1080 wrote to memory of 652	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	35
PID 1080 wrote to memory of 652	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	35
PID 1080 wrote to memory of 652	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	35
PID 1080 wrote to memory of 888	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	37
PID 1080 wrote to memory of 888	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	37
PID 1080 wrote to memory of 888	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	37
PID 1080 wrote to memory of 888	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	37
PID 1080 wrote to memory of 776	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	39
PID 1080 wrote to memory of 776	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	39
PID 1080 wrote to memory of 776	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	39
PID 1080 wrote to memory of 776	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	39
PID 1080 wrote to memory of 1092	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	42
PID 1080 wrote to memory of 1092	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	42
PID 1080 wrote to memory of 1092	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	42
PID 1080 wrote to memory of 1092	1080	cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe	42
PID 1624 wrote to memory of 1164	1624	klxoaejf.exe	44
PID 1624 wrote to memory of 1164	1624	klxoaejf.exe	44
PID 1624 wrote to memory of 1164	1624	klxoaejf.exe	44
PID 1624 wrote to memory of 1164	1624	klxoaejf.exe	44
PID 1624 wrote to memory of 1164	1624	klxoaejf.exe	44
PID 1624 wrote to memory of 1164	1624	klxoaejf.exe	44

C:\Users\Admin\AppData\Local\Temp\cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe
"C:\Users\Admin\AppData\Local\Temp\cdbda4f45e8cb4d6117bcd21304c66a78bcb73f840f48d8e523e76e5b0b57582.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\coyqavqu\
  2⤵
  PID:2000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\klxoaejf.exe" C:\Windows\SysWOW64\coyqavqu\
  2⤵
  PID:1456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create coyqavqu binPath= "C:\Windows\SysWOW64\coyqavqu\klxoaejf.exe" type= own start= auto DisplayName= "P2P Support"
  2⤵
  PID:1576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description coyqavqu "Internet Mobile Support"
  2⤵
  PID:652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start coyqavqu
  2⤵
  PID:888
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies service
  PID:776
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\7563.bat" "
  2⤵
  - Deletes itself
  PID:1092

C:\Windows\SysWOW64\coyqavqu\klxoaejf.exe
C:\Windows\SysWOW64\coyqavqu\klxoaejf.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:1164

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

New Service

T1050

Privilege Escalation

New Service

T1050

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1164-10-0x0000000000080000-0x0000000000095000-memory.dmp

Download

memory/1164-12-0x0000000000080000-0x0000000000095000-memory.dmp