03a8582db8f34154ed1e18821d8d7e2df2148ce0c36b06ed7fb91f387e3f0aa6

General

Target

Invoice.exe
Size

5.1MB
MD5

7f1e268e77797a3049136b2e8b67a997
SHA1

27c0a7cb6cf140d6ad7109cfb2c0f64af73f6e8c
SHA256

03a8582db8f34154ed1e18821d8d7e2df2148ce0c36b06ed7fb91f387e3f0aa6
SHA512

0ddd4c099c3bb57f2f836793fabe78e9679f56caa80105d1d04f90866f533d37437873379b598ce5d5e56bea849a5717de599b37175052ca389cfc80568ee8a3

Score

8^/10

persistence spyware

Malware Config

Signatures

Adds Run entry to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\invoice = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\Desktop\\receipt.exe"	reg.exe

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

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1108	Invoice.exe
Token: SeDebugPrivilege	1512	receipt.exe
Token: SeDebugPrivilege	1848	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1108	Invoice.exe
1108	Invoice.exe
1108	Invoice.exe
1512	receipt.exe
1512	receipt.exe
1512	receipt.exe
1848	RegAsm.exe
1848	RegAsm.exe

Executes dropped EXE 2 IoCs

pid	Process
1512	receipt.exe
1848	RegAsm.exe

Loads dropped DLL 2 IoCs

pid	Process
1512	receipt.exe
1848	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1848	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1108 wrote to memory of 1536	1108	Invoice.exe	24
PID 1108 wrote to memory of 1536	1108	Invoice.exe	24
PID 1108 wrote to memory of 1536	1108	Invoice.exe	24
PID 1108 wrote to memory of 1536	1108	Invoice.exe	24
PID 1536 wrote to memory of 364	1536	cmd.exe	26
PID 1536 wrote to memory of 364	1536	cmd.exe	26
PID 1536 wrote to memory of 364	1536	cmd.exe	26
PID 1536 wrote to memory of 364	1536	cmd.exe	26
PID 1108 wrote to memory of 1512	1108	Invoice.exe	28
PID 1108 wrote to memory of 1512	1108	Invoice.exe	28
PID 1108 wrote to memory of 1512	1108	Invoice.exe	28
PID 1108 wrote to memory of 1512	1108	Invoice.exe	28
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29
PID 1512 wrote to memory of 1848	1512	receipt.exe	29

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1512 set thread context of 1848	1512	receipt.exe	29

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v invoice /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\receipt.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1536
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v invoice /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\receipt.exe"
    3⤵
    - Adds Run entry to start application
    PID:364
- C:\Users\Admin\Desktop\receipt.exe
  "C:\Users\Admin\Desktop\receipt.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  - Suspicious use of SetThreadContext
  PID:1512
- - C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
    "C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious behavior: EnumeratesProcesses
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetWindowsHookEx
    PID:1848

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1848-16-0x0000000000110000-0x000000000015C000-memory.dmp

Filesize
304KB

Download
memory/1848-17-0x0000000000110000-0x000000000015C000-memory.dmp

Filesize
304KB

Download

Analysis

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