b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e

General

Target

b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe
Size

38KB
MD5

3f6f048cd2558159bb5c2e878b190f70
SHA1

143195948dcc3a965ff269027f05771528ac1435
SHA256

b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e
SHA512

66161454f26820f7a7e5043afaecfafd546a5509d4017e9bb8380dfeec8628de8fe171961f743181d7df072f844200d32d251857d45e9ca63fca880df79c5c38
SSDEEP

768:dpwz5Oo51rYr8sqTTOMM6MMMMMMMMM2k9c77777777777777777777777777777G:dW968sqTTOMM6MMMMMMMMM2k9c77777G

Score

8^/10

persistence

Malware Config

Signatures

Adds policy 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\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\7702 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msiclyabo.pif"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1628	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe

Deletes itself 1 IoCs

pid	Process
1744	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
1496	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1496 set thread context of 1628	1496	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	27

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\PROGRA~3\LOCALS~1\Temp\msiclyabo.pif	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1628	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1628	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe
1628	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 1628	1496	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	27
PID 1496 wrote to memory of 1628	1496	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	27
PID 1496 wrote to memory of 1628	1496	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	27
PID 1496 wrote to memory of 1628	1496	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	27
PID 1496 wrote to memory of 1628	1496	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	27
PID 1496 wrote to memory of 1628	1496	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	27
PID 1628 wrote to memory of 1744	1628	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	28
PID 1628 wrote to memory of 1744	1628	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	28
PID 1628 wrote to memory of 1744	1628	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	28
PID 1628 wrote to memory of 1744	1628	b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe	28

C:\Users\Admin\AppData\Local\Temp\b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe
"C:\Users\Admin\AppData\Local\Temp\b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1496
- C:\Users\Admin\AppData\Local\Temp\b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe
  "C:\Users\Admin\AppData\Local\Temp\b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1628
- - C:\Windows\syswow64\svchost.exe
    C:\Windows\syswow64\svchost.exe
    3⤵
    - Adds policy Run key to start application
    - Deletes itself
    - Drops file in Program Files directory
    PID:1744

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

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe

Filesize
38KB

MD5
3f6f048cd2558159bb5c2e878b190f70

SHA1
143195948dcc3a965ff269027f05771528ac1435

SHA256
b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e

SHA512
66161454f26820f7a7e5043afaecfafd546a5509d4017e9bb8380dfeec8628de8fe171961f743181d7df072f844200d32d251857d45e9ca63fca880df79c5c38

Download Submit
\Users\Admin\AppData\Local\Temp\b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e.exe

Filesize
38KB

MD5
3f6f048cd2558159bb5c2e878b190f70

SHA1
143195948dcc3a965ff269027f05771528ac1435

SHA256
b1c38122fa0206b4ee9f68ee9b3139ee9e077b0d4a22652787a15fe92350ff1e

SHA512
66161454f26820f7a7e5043afaecfafd546a5509d4017e9bb8380dfeec8628de8fe171961f743181d7df072f844200d32d251857d45e9ca63fca880df79c5c38

Download Submit
memory/1496-54-0x00000000761F1000-0x00000000761F3000-memory.dmp

Filesize
8KB

Download
memory/1628-57-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1628-59-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1628-56-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1628-62-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1744-65-0x0000000000080000-0x0000000000085000-memory.dmp

Filesize
20KB

Download
memory/1744-64-0x0000000000AC0000-0x0000000000AC8000-memory.dmp

Filesize
32KB

Download
memory/1744-66-0x0000000000020000-0x0000000000025000-memory.dmp

Filesize
20KB

Download
memory/1744-67-0x0000000000020000-0x0000000000025000-memory.dmp

Filesize
20KB

Download

Analysis

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