6a2d4662ca4123e0fce95f32f97323bdd18244a8f8452e9f1a6d2192810cfcf7

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-03-2024 18:03

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General

Target

dfc65f7eb2365ec6a103fa84bc7d9343.exe
Size

151KB
MD5

dfc65f7eb2365ec6a103fa84bc7d9343
SHA1

d54a9973b7ac59886112256876f98c4e3a06a53d
SHA256

6a2d4662ca4123e0fce95f32f97323bdd18244a8f8452e9f1a6d2192810cfcf7
SHA512

160de29106f93de6b4ffda34ad9d7c327b35843dacaccaf8cd46d58ff62962a62f660cd2a0c83245386220acfc30022d3140ac3c9637afae3d79bf4ce6cdecaa
SSDEEP

3072:Ug8GT+5S1L/kpGdyUwJkI6GO6uWt2krnLbbkqS7wopedle7tnR+8RG:Uu1zkG4UwJRO6HtRb/PHoQYtnbE

Score

8^/10

persistence

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
3	5008	RUNDLL32.EXE

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	dfc65f7eb2365ec6a103fa84bc7d9343.exe

Executes dropped EXE 1 IoCs

pid	Process
1004	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
2188	RUNDLL32.EXE
5008	RUNDLL32.EXE

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Autorun = "RUNDLL32.EXE \"C:\\ProgramData\\DRM\\Time Alert Service.DLL\" ServiceMain 3Ȁ"	RUNDLL32.EXE

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

System Information Discovery
T1082

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SS	RUNDLL32.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SS\PROXY	RUNDLL32.EXE
Key created	\REGISTRY\MACHINE\Software\CLASSES\SS\PROXY	RUNDLL32.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5008	RUNDLL32.EXE
Token: SeTcbPrivilege	5008	RUNDLL32.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 1004	4520	dfc65f7eb2365ec6a103fa84bc7d9343.exe	87
PID 4520 wrote to memory of 1004	4520	dfc65f7eb2365ec6a103fa84bc7d9343.exe	87
PID 4520 wrote to memory of 1004	4520	dfc65f7eb2365ec6a103fa84bc7d9343.exe	87
PID 1004 wrote to memory of 2188	1004	svchost.exe	88
PID 1004 wrote to memory of 2188	1004	svchost.exe	88
PID 1004 wrote to memory of 2188	1004	svchost.exe	88
PID 2188 wrote to memory of 5008	2188	RUNDLL32.EXE	89
PID 2188 wrote to memory of 5008	2188	RUNDLL32.EXE	89
PID 2188 wrote to memory of 5008	2188	RUNDLL32.EXE	89

C:\Users\Admin\AppData\Local\Temp\dfc65f7eb2365ec6a103fa84bc7d9343.exe
"C:\Users\Admin\AppData\Local\Temp\dfc65f7eb2365ec6a103fa84bc7d9343.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Users\public\svchost.exe
  "C:\Users\public\svchost.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1004
- - C:\Windows\SysWOW64\RUNDLL32.EXE
    RUNDLL32.EXE "C:\ProgramData\DRM\Time Alert Service.DLL" ServiceMain 0 "C:\Users\public\svchost.exe"
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:2188
  - - C:\Windows\SysWOW64\RUNDLL32.EXE
      RUNDLL32.EXE "C:\ProgramData\DRM\Time Alert Service.DLL" ServiceMain 3
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Modifies registry class
      Suspicious use of AdjustPrivilegeToken
      PID:5008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\DRM\Time Alert Service.DLL

Filesize
159KB

MD5
3c62a1bbae7f62ad82bdac097c8f58f8

SHA1
027344b74d7acebe7d0a2265ddeb8e5ae21a26c2

SHA256
dbc0588724cabc9837d0d0b82c231c3713b36c1cfde87656992e21d24890e9d9

SHA512
1c7164acef0571d0007886b281b3187447ec2b8e284364c02f8592b59fa1271aad4eb879d43766dd5993d1b4301190e75726ede7e82553a49bb30cfdc3704f6e

Download Submit
C:\Users\Public\svchost.exe

Filesize
159KB

MD5
fee80a9e80aa73beb19f526e04603c42

SHA1
ae30052ceb7c42886f91a4400fdbc98c84298f03

SHA256
94fb5d61e5d3f9e44cbc01bcd368f5974509950f223d1d9e327b5bb8006c72a7

SHA512
54c38da211f9e21032d0a0d9f64cd6081a570825842284bb9dba84ae4d7717cedc30ea2eb0a9ea7d08a5039fdc4d8e5d0f3d7d2014176f97003d0d2bb3a5f546

Download Submit
memory/4520-16-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads