bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74

General

Target

bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
Size

114KB
MD5

8d0afebff57e146a661ea7c3ce2a7ead
SHA1

4a76c3ea69a7b9f9857caa589c8df42a3ee8136e
SHA256

bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74
SHA512

c35132255b76b7d304e41879936a9229bbcf54f5449827e4d439f8192bbdc7f9c21f92cc4c996da3b2029656bdc54671c9a3dbe1ed92f76eab2d4be70ddadbfc
SSDEEP

1536:9rHf+/9aQmUSliecczQnRK3JZTwKZmP7p7p3lFO+efKW5qHz:d2IXccceJZcDff6qHz

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4460	rundll32.exe
4316	svchost.exe

Adds Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Service Host Process for Windows = "C:\\Users\\Admin\\AppData\\Roaming\\rundll32.exe"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Process = "C:\\Windows\\system32\\csrss.exe"	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Host-process Windows (Rundll32.exe) = "C:\\Users\\Admin\\AppData\\Roaming\\rundll32.exe"	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Service Host Process for Windows = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	rundll32.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\svchost.exe	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
File created	C:\Windows\SysWOW64\svchost.exe	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
File created	C:\Windows\SysWOW64\csrss.exe	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
File opened for modification	C:\Windows\SysWOW64\csrss.exe	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
File opened for modification	C:\Windows\SysWOW64\rundll32.exe	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
File created	C:\Windows\SysWOW64\rundll32.exe	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 4460	4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe	82
PID 4896 wrote to memory of 4460	4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe	82
PID 4896 wrote to memory of 4460	4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe	82
PID 4896 wrote to memory of 4316	4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe	83
PID 4896 wrote to memory of 4316	4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe	83
PID 4896 wrote to memory of 4316	4896	bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe	83

C:\Users\Admin\AppData\Local\Temp\bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe
"C:\Users\Admin\AppData\Local\Temp\bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Users\Admin\AppData\Roaming\rundll32.exe
  "C:\Users\Admin\AppData\Roaming\rundll32.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:4460
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Executes dropped EXE
  PID:4316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

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:\Users\Admin\AppData\Roaming\rundll32.exe

Filesize
114KB

MD5
8d0afebff57e146a661ea7c3ce2a7ead

SHA1
4a76c3ea69a7b9f9857caa589c8df42a3ee8136e

SHA256
bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74

SHA512
c35132255b76b7d304e41879936a9229bbcf54f5449827e4d439f8192bbdc7f9c21f92cc4c996da3b2029656bdc54671c9a3dbe1ed92f76eab2d4be70ddadbfc

Download Submit
C:\Users\Admin\AppData\Roaming\rundll32.exe

Filesize
114KB

MD5
8d0afebff57e146a661ea7c3ce2a7ead

SHA1
4a76c3ea69a7b9f9857caa589c8df42a3ee8136e

SHA256
bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74

SHA512
c35132255b76b7d304e41879936a9229bbcf54f5449827e4d439f8192bbdc7f9c21f92cc4c996da3b2029656bdc54671c9a3dbe1ed92f76eab2d4be70ddadbfc

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
114KB

MD5
8d0afebff57e146a661ea7c3ce2a7ead

SHA1
4a76c3ea69a7b9f9857caa589c8df42a3ee8136e

SHA256
bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74

SHA512
c35132255b76b7d304e41879936a9229bbcf54f5449827e4d439f8192bbdc7f9c21f92cc4c996da3b2029656bdc54671c9a3dbe1ed92f76eab2d4be70ddadbfc

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
114KB

MD5
8d0afebff57e146a661ea7c3ce2a7ead

SHA1
4a76c3ea69a7b9f9857caa589c8df42a3ee8136e

SHA256
bd5ecf7feb0dce18cf2564b2f0bb89307093552a0e76e6b395c5a56cf896dd74

SHA512
c35132255b76b7d304e41879936a9229bbcf54f5449827e4d439f8192bbdc7f9c21f92cc4c996da3b2029656bdc54671c9a3dbe1ed92f76eab2d4be70ddadbfc

Download Submit

Analysis

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