b138c7c0f7c462bd3b78ae7fdd98903f87560aab8bae6ecd4847be2b551c52e2

Analysis

max time kernel
147s
max time network
183s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 18:43

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General

Target

b138c7c0f7c462bd3b78ae7fdd98903f87560aab8bae6ecd4847be2b551c52e2.exe
Size

327KB
MD5

c8b35bda3870044f416dc32c0fd45646
SHA1

c98d330d000e8e2a497f050c6eeceb751c475c0d
SHA256

b138c7c0f7c462bd3b78ae7fdd98903f87560aab8bae6ecd4847be2b551c52e2
SHA512

90603064045e4df00eabd3bc2c5439ed71dfc9f649c1dc4a86803741c265cb334998c2340db9d4cdc658cffb66478ad78f65de4fac17683caded1a75e1e1e66f
SSDEEP

6144:ROrb/7NraKU6SK9EE7RkCVAwDBYsMIrAj+eyJmSbPTOs0c9PQdMb1ljIf7Sny:RoT7NzUPK9EE7hzxAjZyJmSXOs0mPQOW

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
260	DSA.EXE
4924	Hacker.com.cn.exe

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\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	b138c7c0f7c462bd3b78ae7fdd98903f87560aab8bae6ecd4847be2b551c52e2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	b138c7c0f7c462bd3b78ae7fdd98903f87560aab8bae6ecd4847be2b551c52e2.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Hacker.com.cn.exe	DSA.EXE
File opened for modification	C:\Windows\Hacker.com.cn.exe	DSA.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	260	DSA.EXE
Token: SeDebugPrivilege	4924	Hacker.com.cn.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4924	Hacker.com.cn.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 260	1456	b138c7c0f7c462bd3b78ae7fdd98903f87560aab8bae6ecd4847be2b551c52e2.exe	85
PID 1456 wrote to memory of 260	1456	b138c7c0f7c462bd3b78ae7fdd98903f87560aab8bae6ecd4847be2b551c52e2.exe	85
PID 1456 wrote to memory of 260	1456	b138c7c0f7c462bd3b78ae7fdd98903f87560aab8bae6ecd4847be2b551c52e2.exe	85
PID 4924 wrote to memory of 3604	4924	Hacker.com.cn.exe	87
PID 4924 wrote to memory of 3604	4924	Hacker.com.cn.exe	87

C:\Users\Admin\AppData\Local\Temp\b138c7c0f7c462bd3b78ae7fdd98903f87560aab8bae6ecd4847be2b551c52e2.exe
"C:\Users\Admin\AppData\Local\Temp\b138c7c0f7c462bd3b78ae7fdd98903f87560aab8bae6ecd4847be2b551c52e2.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\DSA.EXE
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\DSA.EXE
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:260

C:\Windows\Hacker.com.cn.exe
C:\Windows\Hacker.com.cn.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4924
- C:\Program Files\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
  2⤵
  PID:3604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

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

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\DSA.EXE

Filesize
290KB

MD5
fb5d9233faca3ceaec5cd99ea9dc27ed

SHA1
ec10a970b246c88e2b5f1371bdc4829feb9f5e4d

SHA256
7dcb83d6d422e8eb550a7c6933b74bbf1f00b79f5fd09e45d281f17383822ebe

SHA512
bf2834def89f1a6b83a4f3b5a45c9651915f17b7ceddecf8abbe9a6c6d0c41eb143282c3b36b6bb222e4fce79697931d333cf5ab6f00cbe142677f2bfbed4bb6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\DSA.EXE

Filesize
290KB

MD5
fb5d9233faca3ceaec5cd99ea9dc27ed

SHA1
ec10a970b246c88e2b5f1371bdc4829feb9f5e4d

SHA256
7dcb83d6d422e8eb550a7c6933b74bbf1f00b79f5fd09e45d281f17383822ebe

SHA512
bf2834def89f1a6b83a4f3b5a45c9651915f17b7ceddecf8abbe9a6c6d0c41eb143282c3b36b6bb222e4fce79697931d333cf5ab6f00cbe142677f2bfbed4bb6

Download Submit
C:\Windows\Hacker.com.cn.exe

Filesize
290KB

MD5
fb5d9233faca3ceaec5cd99ea9dc27ed

SHA1
ec10a970b246c88e2b5f1371bdc4829feb9f5e4d

SHA256
7dcb83d6d422e8eb550a7c6933b74bbf1f00b79f5fd09e45d281f17383822ebe

SHA512
bf2834def89f1a6b83a4f3b5a45c9651915f17b7ceddecf8abbe9a6c6d0c41eb143282c3b36b6bb222e4fce79697931d333cf5ab6f00cbe142677f2bfbed4bb6

Download Submit
C:\Windows\Hacker.com.cn.exe

Filesize
290KB

MD5
fb5d9233faca3ceaec5cd99ea9dc27ed

SHA1
ec10a970b246c88e2b5f1371bdc4829feb9f5e4d

SHA256
7dcb83d6d422e8eb550a7c6933b74bbf1f00b79f5fd09e45d281f17383822ebe

SHA512
bf2834def89f1a6b83a4f3b5a45c9651915f17b7ceddecf8abbe9a6c6d0c41eb143282c3b36b6bb222e4fce79697931d333cf5ab6f00cbe142677f2bfbed4bb6

Download Submit
memory/260-138-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download
memory/260-139-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download
memory/1456-132-0x0000000001000000-0x0000000001102000-memory.dmp

Filesize
1.0MB

Download
memory/1456-134-0x0000000001000000-0x0000000001102000-memory.dmp

Filesize
1.0MB

Download
memory/1456-133-0x0000000001000000-0x0000000001102000-memory.dmp

Filesize
1.0MB

Download
memory/1456-144-0x0000000001000000-0x0000000001102000-memory.dmp

Filesize
1.0MB

Download
memory/4924-142-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download
memory/4924-143-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download
memory/4924-145-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download