d6e9972976881d3dad7ac2a0c66cd7dd81420908aae8b00195a02fdf756cfc5e

General

Target

Update.exe
Size

5.6MB
MD5

b8703418e6c3d1ccd83b8d178ab9f4c9
SHA1

6fb0e1e0ee5bc745f52a1c29e3cf4b88a2298dd6
SHA256

d6e9972976881d3dad7ac2a0c66cd7dd81420908aae8b00195a02fdf756cfc5e
SHA512

75ff6e911691e3d0d32c25d4b6d275a2b6157dae418ce5507f3e3f1b321c3f0dee516b7db0fd6588860019a19862f43c5335c465829de7a418a71999b71cfc3f
SSDEEP

98304:sbl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6Ucf:s6OuK6mn9NzgMoYkSIvUcwti7TQlvciA

Score

9^/10

credential_access discovery persistence spyware stealer

Malware Config

Signatures

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Deletes itself 1 IoCs

pid	Process
2848	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2584	Update.exe

Loads dropped DLL 2 IoCs

pid	Process
2624	Update.exe
2584	Update.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\ChromeUpdater = "C:\\Users\\Admin\\AppData\\Roaming\\GoogleChromeUpdateLogger\\Update.exe"	reg.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
6	raw.githubusercontent.com
7	raw.githubusercontent.com
10	raw.githubusercontent.com

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

Enumerates processes with tasklist 1 TTPs 1 IoCs

discovery

Process Discovery

T1057

pid	Process
2580	tasklist.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Update.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Update.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2548	timeout.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2008	reg.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2624	Update.exe
2624	Update.exe
2624	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe
2584	Update.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	Update.exe
Token: SeDebugPrivilege	2580	tasklist.exe
Token: SeDebugPrivilege	2584	Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2584	Update.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 2848	2624	Update.exe	31
PID 2624 wrote to memory of 2848	2624	Update.exe	31
PID 2624 wrote to memory of 2848	2624	Update.exe	31
PID 2848 wrote to memory of 2580	2848	cmd.exe	33
PID 2848 wrote to memory of 2580	2848	cmd.exe	33
PID 2848 wrote to memory of 2580	2848	cmd.exe	33
PID 2848 wrote to memory of 2588	2848	cmd.exe	34
PID 2848 wrote to memory of 2588	2848	cmd.exe	34
PID 2848 wrote to memory of 2588	2848	cmd.exe	34
PID 2848 wrote to memory of 2548	2848	cmd.exe	35
PID 2848 wrote to memory of 2548	2848	cmd.exe	35
PID 2848 wrote to memory of 2548	2848	cmd.exe	35
PID 2848 wrote to memory of 2584	2848	cmd.exe	36
PID 2848 wrote to memory of 2584	2848	cmd.exe	36
PID 2848 wrote to memory of 2584	2848	cmd.exe	36
PID 2584 wrote to memory of 2920	2584	Update.exe	37
PID 2584 wrote to memory of 2920	2584	Update.exe	37
PID 2584 wrote to memory of 2920	2584	Update.exe	37
PID 2920 wrote to memory of 2008	2920	cmd.exe	39
PID 2920 wrote to memory of 2008	2920	cmd.exe	39
PID 2920 wrote to memory of 2008	2920	cmd.exe	39
PID 2584 wrote to memory of 2148	2584	Update.exe	40
PID 2584 wrote to memory of 2148	2584	Update.exe	40
PID 2584 wrote to memory of 2148	2584	Update.exe	40

C:\Users\Admin\AppData\Local\Temp\Update.exe
"C:\Users\Admin\AppData\Local\Temp\Update.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp1545.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp1545.tmp.bat
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Windows\system32\tasklist.exe
    Tasklist /fi "PID eq 2624"
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2580
- - C:\Windows\system32\find.exe
    find ":"
    3⤵
    PID:2588
- - C:\Windows\system32\timeout.exe
    Timeout /T 1 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:2548
- - C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLogger\Update.exe
    "C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLogger\Update.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2584
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdater /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLogger\Update.exe /f
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2920
    - - C:\Windows\system32\reg.exe
        
        reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdater /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLogger\Update.exe /f
        5⤵
        Adds Run key to start application
        Modifies registry key
        
        PID:2008
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2584 -s 1748
      4⤵
      PID:2148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

Process Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1545.tmp.bat

Filesize
280B

MD5
03c370adadc2897a2d0bc160686cad88

SHA1
8746660567b1e3bdd956b997fc48d72ffe512a65

SHA256
3fb5893e214cfcd04016ebd62627fed0821efc7bf633c32d8471521b0c414ba8

SHA512
ea84316434cb282ad6c30359c24f74c9e88d5bd49b9ff050938ea0fb159052d069220fad67f3d896a3adf5081c6930c8ec43e45f1f4982ff1c522937ac598490

Download Submit
C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLogger\Update.exe

Filesize
5.6MB

MD5
b8703418e6c3d1ccd83b8d178ab9f4c9

SHA1
6fb0e1e0ee5bc745f52a1c29e3cf4b88a2298dd6

SHA256
d6e9972976881d3dad7ac2a0c66cd7dd81420908aae8b00195a02fdf756cfc5e

SHA512
75ff6e911691e3d0d32c25d4b6d275a2b6157dae418ce5507f3e3f1b321c3f0dee516b7db0fd6588860019a19862f43c5335c465829de7a418a71999b71cfc3f

Download Submit
\Users\Admin\AppData\Local\Temp\Costura\A54E036D2DCD19384E8EA53862E0DD8F\64\sqlite.interop.dll

Filesize
1.7MB

MD5
65ccd6ecb99899083d43f7c24eb8f869

SHA1
27037a9470cc5ed177c0b6688495f3a51996a023

SHA256
aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4

SHA512
533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d

Download Submit
memory/2584-14-0x0000000000190000-0x0000000000730000-memory.dmp

Filesize
5.6MB

Download
memory/2584-17-0x000000001B730000-0x000000001B79A000-memory.dmp

Filesize
424KB

Download
memory/2584-19-0x000000001CF10000-0x000000001CFC2000-memory.dmp

Filesize
712KB

Download
memory/2584-21-0x00000000024C0000-0x00000000024E5000-memory.dmp

Filesize
148KB

Download
memory/2624-0-0x000007FEF5823000-0x000007FEF5824000-memory.dmp

Filesize
4KB

Download
memory/2624-1-0x0000000000FF0000-0x0000000001590000-memory.dmp

Filesize
5.6MB

Download
memory/2624-6-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

Filesize
9.9MB

Download
memory/2624-9-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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