4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f

Analysis

max time kernel
153s
max time network
111s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 01:52

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General

Target

4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe
Size

21KB
MD5

45ea5e6ea8d5caf3975ab9b0d935d628
SHA1

7ea36bb324b2eebe9bebad4ad16665d25dd51d3a
SHA256

4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f
SHA512

528251c20d413aeabb92631fb5ee7658b69972269439711bd9b87d774d8ea0ed5d30b31fffe22c6e21a550012c0379847024a766473260b08dfe5c60e89de64d
SSDEEP

384:vrVaAhmoKnwWLcBZcIqt0JBwmgwOsC31vRlUt5GRA7K7s1qnW5Y4R5vSYT:zVaAhmokBwbClvRlc5GRqUs1X5dR5vSm

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

oiameu.exe

pid process

968 oiameu.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1648 cmd.exe

pid	process
968	oiameu.exe

pid	process
1648	cmd.exe

Drops file in System32 directory 2 IoCs

Processes:

4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe

description	ioc	process
File created	C:\Windows\SysWOW64\oiameu.exe	4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe
File opened for modification	C:\Windows\SysWOW64\oiameu.exe	4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

oiameu.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	oiameu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	oiameu.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe

description pid process

Token: SeIncBasePriorityPrivilege 1216 4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1216	4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe

description	pid	process	target process
PID 1216 wrote to memory of 1648	1216	4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe	cmd.exe
PID 1216 wrote to memory of 1648	1216	4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe	cmd.exe
PID 1216 wrote to memory of 1648	1216	4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe	cmd.exe
PID 1216 wrote to memory of 1648	1216	4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe
"C:\Users\Admin\AppData\Local\Temp\4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\4BAA6D~1.EXE > nul
2⤵
- Deletes itself
PID:1648

C:\Windows\SysWOW64\oiameu.exe
C:\Windows\SysWOW64\oiameu.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:968

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\oiameu.exe
Filesize
21KB

MD5
45ea5e6ea8d5caf3975ab9b0d935d628

SHA1
7ea36bb324b2eebe9bebad4ad16665d25dd51d3a

SHA256
4baa6d365b30b0026e3471580905b2e417eabecd0970b09a7994ae53a838d13f

SHA512
528251c20d413aeabb92631fb5ee7658b69972269439711bd9b87d774d8ea0ed5d30b31fffe22c6e21a550012c0379847024a766473260b08dfe5c60e89de64d

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memory/1648-55-0x0000000000000000-mapping.dmp

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