32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3

Analysis

max time kernel
57s
max time network
115s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
27/11/2022, 16:23

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General

Target

32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3.exe
Size

225KB
MD5

e70248a4fba71b348fc4519390fe7a3a
SHA1

652368e6a4dd52d40a43d4abe32409a811d522b1
SHA256

32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3
SHA512

67f55c7495d25357c9167a5d2b17079a98c273b809dc8c69824e525c7d4054eb2ca83a45bd0b988033f7add8c65e6d542b08ea815885353e9e0d88a32707e121
SSDEEP

6144:42sv4O06yy68dzbnNTO1EcEnGnpvkTE5NPgkGPAN9c:pA4O0NynJjNa1EcEn+rPgkI6c

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
916	steamwebhelper.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\steamwebhelper = "C:\\Users\\Admin\\AppData\\Roaming\\steamwebhelper2\\steamwebhelper.exe"	32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\steamwebhelper = "C:\\Users\\Admin\\AppData\\Roaming\\steamwebhelper2\\steamwebhelper.exe"	steamwebhelper.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 2 IoCs

pid	Process
1236	32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3.exe
916	steamwebhelper.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1236	32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3.exe
Token: SeDebugPrivilege	916	steamwebhelper.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 916	1236	32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3.exe	28
PID 1236 wrote to memory of 916	1236	32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3.exe	28
PID 1236 wrote to memory of 916	1236	32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3.exe	28

C:\Users\Admin\AppData\Local\Temp\32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3.exe
"C:\Users\Admin\AppData\Local\Temp\32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1236
- 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:916

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
225KB

MD5
e70248a4fba71b348fc4519390fe7a3a

SHA1
652368e6a4dd52d40a43d4abe32409a811d522b1

SHA256
32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3

SHA512
67f55c7495d25357c9167a5d2b17079a98c273b809dc8c69824e525c7d4054eb2ca83a45bd0b988033f7add8c65e6d542b08ea815885353e9e0d88a32707e121

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

Filesize
225KB

MD5
e70248a4fba71b348fc4519390fe7a3a

SHA1
652368e6a4dd52d40a43d4abe32409a811d522b1

SHA256
32bb625863ebe5b9f950ad0a5772417f6373f9d6291b5c8b8a7bad85656c79d3

SHA512
67f55c7495d25357c9167a5d2b17079a98c273b809dc8c69824e525c7d4054eb2ca83a45bd0b988033f7add8c65e6d542b08ea815885353e9e0d88a32707e121

Download Submit
memory/916-62-0x0000000001000000-0x000000000103E000-memory.dmp

Filesize
248KB

Download
memory/916-64-0x000000001B036000-0x000000001B055000-memory.dmp

Filesize
124KB

Download
memory/1236-54-0x0000000000DF0000-0x0000000000E2E000-memory.dmp

Filesize
248KB

Download
memory/1236-55-0x0000000000140000-0x0000000000176000-memory.dmp

Filesize
216KB

Download
memory/1236-56-0x0000000000180000-0x0000000000186000-memory.dmp

Filesize
24KB

Download
memory/1236-57-0x000007FEFB8F1000-0x000007FEFB8F3000-memory.dmp

Filesize
8KB

Download
memory/1236-58-0x000000001B086000-0x000000001B0A5000-memory.dmp

Filesize
124KB

Download