aa723f86bd0a2ba235b7422e8956ec88a6b0eb389d43e919875253b9e0465d52

General

Target

NEAS.da17f83d947f741ec61df2a41182b1d0_JC.exe
Size

209KB
MD5

da17f83d947f741ec61df2a41182b1d0
SHA1

c62ed6ecf822fa1cbd194577b644fcaa4129d34e
SHA256

aa723f86bd0a2ba235b7422e8956ec88a6b0eb389d43e919875253b9e0465d52
SHA512

478f82cab4cc9a7be3f9bc05daab88f41355ac485bef702ee6ce6470871677ad55ada018b675590caa0e3925940b0b59390a5d2d683777d0ce7393cfad003ccb
SSDEEP

3072:rQcjk9tVRNIcjb4Ryfjijjx14hdeCXHKPJFo9zpE7Di0X0JuLL+o7BlpF9e:rQh9tVRm2kh34hdeCkcG7DEALLlnN

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\apppatch\\svchost.exe,"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4724	svchost.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4088-1-0x0000000000400000-0x0000000000469000-memory.dmp	upx
behavioral2/memory/4088-2-0x0000000000400000-0x0000000000469000-memory.dmp	upx
behavioral2/memory/4088-12-0x0000000000400000-0x0000000000469000-memory.dmp	upx
behavioral2/memory/4724-18-0x0000000000400000-0x0000000000469000-memory.dmp	upx

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\7d9a6ab4 = "C:\\Windows\\apppatch\\svchost.exe"	NEAS.da17f83d947f741ec61df2a41182b1d0_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\7d9a6ab4 = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	NEAS.da17f83d947f741ec61df2a41182b1d0_JC.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	NEAS.da17f83d947f741ec61df2a41182b1d0_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4724	svchost.exe
4724	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4088	NEAS.da17f83d947f741ec61df2a41182b1d0_JC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 4724	4088	NEAS.da17f83d947f741ec61df2a41182b1d0_JC.exe	91
PID 4088 wrote to memory of 4724	4088	NEAS.da17f83d947f741ec61df2a41182b1d0_JC.exe	91
PID 4088 wrote to memory of 4724	4088	NEAS.da17f83d947f741ec61df2a41182b1d0_JC.exe	91

C:\Users\Admin\AppData\Local\Temp\NEAS.da17f83d947f741ec61df2a41182b1d0_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.da17f83d947f741ec61df2a41182b1d0_JC.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4088
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Modifies WinLogon
  - Suspicious behavior: EnumeratesProcesses
  PID:4724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Winlogon Helper DLL

2

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Winlogon Helper DLL

2

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\apppatch\svchost.exe

Filesize
209KB

MD5
5874cd5701ebfcda8d9a73f3d4f73b39

SHA1
0deae7cb6b71b6982efc5a71a6ebd62d1a0f10fb

SHA256
a1166d501fbb8ce23253ebd562a090f3f3a731af5749563d45395894db177b7d

SHA512
c5e185ca83ce756d4d4c8298573227df136e01ab78465a69114a39101bd3eccc08cdebc15fc9c4c158b6ad904a6bddf98eb4a3c65f7214e12c2a0920d4cac5b0

Download Submit
C:\Windows\apppatch\svchost.exe

Filesize
209KB

MD5
5874cd5701ebfcda8d9a73f3d4f73b39

SHA1
0deae7cb6b71b6982efc5a71a6ebd62d1a0f10fb

SHA256
a1166d501fbb8ce23253ebd562a090f3f3a731af5749563d45395894db177b7d

SHA512
c5e185ca83ce756d4d4c8298573227df136e01ab78465a69114a39101bd3eccc08cdebc15fc9c4c158b6ad904a6bddf98eb4a3c65f7214e12c2a0920d4cac5b0

Download Submit
C:\Windows\apppatch\svchost.exe

Filesize
209KB

MD5
5874cd5701ebfcda8d9a73f3d4f73b39

SHA1
0deae7cb6b71b6982efc5a71a6ebd62d1a0f10fb

SHA256
a1166d501fbb8ce23253ebd562a090f3f3a731af5749563d45395894db177b7d

SHA512
c5e185ca83ce756d4d4c8298573227df136e01ab78465a69114a39101bd3eccc08cdebc15fc9c4c158b6ad904a6bddf98eb4a3c65f7214e12c2a0920d4cac5b0

Download Submit
memory/4088-12-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4088-2-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4088-1-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4088-0-0x00000000005D0000-0x0000000000628000-memory.dmp

Filesize
352KB

Download
memory/4088-13-0x00000000005D0000-0x0000000000628000-memory.dmp

Filesize
352KB

Download
memory/4724-14-0x0000000002A00000-0x0000000002A8A000-memory.dmp

Filesize
552KB

Download
memory/4724-16-0x0000000002B90000-0x0000000002C29000-memory.dmp

Filesize
612KB

Download
memory/4724-18-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4724-21-0x0000000002B90000-0x0000000002C29000-memory.dmp

Filesize
612KB

Download
memory/4724-22-0x0000000002B90000-0x0000000002C29000-memory.dmp

Filesize
612KB

Download
memory/4724-20-0x0000000002B90000-0x0000000002C29000-memory.dmp

Filesize
612KB

Download
memory/4724-25-0x0000000002B90000-0x0000000002C29000-memory.dmp

Filesize
612KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads