093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515

Analysis

max time kernel
43s
max time network
153s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 05:13

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General

Target

093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exe
Size

492KB
MD5

54372c8ae78aa5ff4c90a3722116d575
SHA1

d89affdbe215f85fc9060f1d20379bc297bf3cf1
SHA256

093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515
SHA512

150430ec8b6c2553e7b4516e906cf2746456ab5135066091586e479dff4161ee112da91d76ef50a5967cc7f6d0a550d6a63376f203b070833cc1b5b7aac8e4f8
SSDEEP

6144:VxKjbC0UeXUWCP9h3BDR4vOhVmMX+oSXQER0u+GIIIIIIIhIIIIIIIIIIIIIIIUS:VxKjbCreEWCPpKOhYTRm5S

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

steamwebhelper.exe

pid process

1680 steamwebhelper.exe

pid	process
1680	steamwebhelper.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

steamwebhelper.exe093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\steamwebhelper = "C:\\Users\\Admin\\AppData\\Roaming\\steamwebhelper2\\steamwebhelper.exe"	steamwebhelper.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\steamwebhelper = "C:\\Users\\Admin\\AppData\\Roaming\\steamwebhelper2\\steamwebhelper.exe"	093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

steamwebhelper.exe

pid process

1680 steamwebhelper.exe

pid	process
1680	steamwebhelper.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exesteamwebhelper.exe

description	pid	process
Token: SeDebugPrivilege	1192	093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exe
Token: SeDebugPrivilege	1680	steamwebhelper.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exe

description	pid	process	target process
PID 1192 wrote to memory of 1680	1192	093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exe	steamwebhelper.exe
PID 1192 wrote to memory of 1680	1192	093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exe	steamwebhelper.exe
PID 1192 wrote to memory of 1680	1192	093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exe	steamwebhelper.exe

C:\Users\Admin\AppData\Local\Temp\093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exe
"C:\Users\Admin\AppData\Local\Temp\093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1192

C:\Users\Admin\AppData\Roaming\steamwebhelper2\steamwebhelper.exe
"C:\Users\Admin\AppData\Roaming\steamwebhelper2\steamwebhelper.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1680

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\steamwebhelper2\steamwebhelper.exe

Filesize
492KB

MD5
54372c8ae78aa5ff4c90a3722116d575

SHA1
d89affdbe215f85fc9060f1d20379bc297bf3cf1

SHA256
093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515

SHA512
150430ec8b6c2553e7b4516e906cf2746456ab5135066091586e479dff4161ee112da91d76ef50a5967cc7f6d0a550d6a63376f203b070833cc1b5b7aac8e4f8

Download Submit
C:\Users\Admin\AppData\Roaming\steamwebhelper2\steamwebhelper.exe

Filesize
492KB

MD5
54372c8ae78aa5ff4c90a3722116d575

SHA1
d89affdbe215f85fc9060f1d20379bc297bf3cf1

SHA256
093f32ffdb62d4901b17f34fc85e001b49032503e4c5a73044dce7c961a16515

SHA512
150430ec8b6c2553e7b4516e906cf2746456ab5135066091586e479dff4161ee112da91d76ef50a5967cc7f6d0a550d6a63376f203b070833cc1b5b7aac8e4f8

Download Submit
memory/1192-54-0x00000000001F0000-0x0000000000270000-memory.dmp

Filesize
512KB

Download
memory/1192-55-0x00000000004F0000-0x0000000000526000-memory.dmp

Filesize
216KB

Download
memory/1192-56-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1192-57-0x000007FEFC391000-0x000007FEFC393000-memory.dmp

Filesize
8KB

Download
memory/1680-58-0x0000000000000000-mapping.dmp

Download
memory/1680-61-0x00000000010A0000-0x0000000001120000-memory.dmp

Filesize
512KB

Download