c6fc97461f43424ff52df79b13cc3963060582bd3b6df60f56081a32e5598bda

General

Target

10b589002734298b2a80bbf459aa41a0_exe32_JC.exe
Size

213KB
MD5

10b589002734298b2a80bbf459aa41a0
SHA1

4e7b7006de1aeda0b9fa2c76ce1a7a1d33bd1e86
SHA256

c6fc97461f43424ff52df79b13cc3963060582bd3b6df60f56081a32e5598bda
SHA512

f42a15b0087614448634f3aaa5925ef69071cf86c29de4fd9e6cc150f58244983267e6c4ac945c5957e80ddecf9cbf87fd0e98fac16f143af88c66aa8081c173
SSDEEP

6144:ztvBPnU1b7e9SQii1EkoNlhlrQ2ZrM2x:Zv1nWdQP1EDhZPx

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2912	Isass.exe

Loads dropped DLL 2 IoCs

pid	Process
1752	10b589002734298b2a80bbf459aa41a0_exe32_JC.exe
1752	10b589002734298b2a80bbf459aa41a0_exe32_JC.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Program Files (x86)\\Microsoft Build\\Isass.exe"	10b589002734298b2a80bbf459aa41a0_exe32_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Program Files (x86)\\Microsoft Build\\Isass.exe"	10b589002734298b2a80bbf459aa41a0_exe32_JC.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft Build\Isass.exe	10b589002734298b2a80bbf459aa41a0_exe32_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1752	10b589002734298b2a80bbf459aa41a0_exe32_JC.exe
2912	Isass.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 2912	1752	10b589002734298b2a80bbf459aa41a0_exe32_JC.exe	28
PID 1752 wrote to memory of 2912	1752	10b589002734298b2a80bbf459aa41a0_exe32_JC.exe	28
PID 1752 wrote to memory of 2912	1752	10b589002734298b2a80bbf459aa41a0_exe32_JC.exe	28
PID 1752 wrote to memory of 2912	1752	10b589002734298b2a80bbf459aa41a0_exe32_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\10b589002734298b2a80bbf459aa41a0_exe32_JC.exe
"C:\Users\Admin\AppData\Local\Temp\10b589002734298b2a80bbf459aa41a0_exe32_JC.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Program Files (x86)\Microsoft Build\Isass.exe
  "C:\Program Files (x86)\Microsoft Build\Isass.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:2912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft Build\Isass.exe

Filesize
213KB

MD5
10b589002734298b2a80bbf459aa41a0

SHA1
4e7b7006de1aeda0b9fa2c76ce1a7a1d33bd1e86

SHA256
c6fc97461f43424ff52df79b13cc3963060582bd3b6df60f56081a32e5598bda

SHA512
f42a15b0087614448634f3aaa5925ef69071cf86c29de4fd9e6cc150f58244983267e6c4ac945c5957e80ddecf9cbf87fd0e98fac16f143af88c66aa8081c173

Download Submit
C:\Program Files (x86)\Microsoft Build\Isass.exe

Filesize
213KB

MD5
10b589002734298b2a80bbf459aa41a0

SHA1
4e7b7006de1aeda0b9fa2c76ce1a7a1d33bd1e86

SHA256
c6fc97461f43424ff52df79b13cc3963060582bd3b6df60f56081a32e5598bda

SHA512
f42a15b0087614448634f3aaa5925ef69071cf86c29de4fd9e6cc150f58244983267e6c4ac945c5957e80ddecf9cbf87fd0e98fac16f143af88c66aa8081c173

Download Submit
C:\Program Files (x86)\Microsoft Build\Isass.exe

Filesize
213KB

MD5
10b589002734298b2a80bbf459aa41a0

SHA1
4e7b7006de1aeda0b9fa2c76ce1a7a1d33bd1e86

SHA256
c6fc97461f43424ff52df79b13cc3963060582bd3b6df60f56081a32e5598bda

SHA512
f42a15b0087614448634f3aaa5925ef69071cf86c29de4fd9e6cc150f58244983267e6c4ac945c5957e80ddecf9cbf87fd0e98fac16f143af88c66aa8081c173

Download Submit
\Program Files (x86)\Microsoft Build\Isass.exe

Filesize
213KB

MD5
10b589002734298b2a80bbf459aa41a0

SHA1
4e7b7006de1aeda0b9fa2c76ce1a7a1d33bd1e86

SHA256
c6fc97461f43424ff52df79b13cc3963060582bd3b6df60f56081a32e5598bda

SHA512
f42a15b0087614448634f3aaa5925ef69071cf86c29de4fd9e6cc150f58244983267e6c4ac945c5957e80ddecf9cbf87fd0e98fac16f143af88c66aa8081c173

Download Submit
\Program Files (x86)\Microsoft Build\Isass.exe

Filesize
213KB

MD5
10b589002734298b2a80bbf459aa41a0

SHA1
4e7b7006de1aeda0b9fa2c76ce1a7a1d33bd1e86

SHA256
c6fc97461f43424ff52df79b13cc3963060582bd3b6df60f56081a32e5598bda

SHA512
f42a15b0087614448634f3aaa5925ef69071cf86c29de4fd9e6cc150f58244983267e6c4ac945c5957e80ddecf9cbf87fd0e98fac16f143af88c66aa8081c173

Download Submit
memory/1752-16-0x0000000003DA0000-0x0000000005047000-memory.dmp

Filesize
18.7MB

Download
memory/1752-8-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/1752-11-0x0000000003DA0000-0x0000000005047000-memory.dmp

Filesize
18.7MB

Download
memory/1752-12-0x0000000003DA0000-0x0000000005047000-memory.dmp

Filesize
18.7MB

Download
memory/1752-10-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-26-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-33-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-14-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2912-17-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-18-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-23-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-13-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-15-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-34-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-35-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-40-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-44-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-45-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-46-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-51-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2912-58-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads