dc8b8a802ba59375eb9bed0c1a49303a7ce869f456d047585ab507e4ece76c3a

Analysis

max time kernel
143s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2023, 15:27

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General

Target
Invoice.exe
Size 629KB
Sample231002-svrdeacb2s
SHA256 dc8b8a802ba59375eb9bed0c1a49303a7ce869f456d047585ab507e4ece76c3a
MD5 68a1273cf073a7f3e6720caf356e80c3
SHA1 0c81386acd530722d98a1841d1794fbd5dcc206f
SHA512 13f9d23367a57612973f5b7237e87f514e322e23b9d9a5f2cc8dc500c9b440c2c42eb7d30dbae7ae9d30b0a86a493b7272b31a4cd748a15ae8529492de445305
SSDEEP 12288:+U3+FvgqkE2Ge45jj5FNK6bx0g4LXRcAxg9NumB0:D3+FvCL45j86bx0FRxzy
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

collection spyware stealer

Malware Config

Signatures

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 stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice.exe

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
48	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4592 set thread context of 3828	4592	Invoice.exe	97

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4592	Invoice.exe
4592	Invoice.exe
3828	Invoice.exe
3828	Invoice.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3828	Invoice.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4592	Invoice.exe
Token: SeDebugPrivilege	3828	Invoice.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 4228	4592	Invoice.exe	96
PID 4592 wrote to memory of 4228	4592	Invoice.exe	96
PID 4592 wrote to memory of 4228	4592	Invoice.exe	96
PID 4592 wrote to memory of 3828	4592	Invoice.exe	97
PID 4592 wrote to memory of 3828	4592	Invoice.exe	97
PID 4592 wrote to memory of 3828	4592	Invoice.exe	97
PID 4592 wrote to memory of 3828	4592	Invoice.exe	97
PID 4592 wrote to memory of 3828	4592	Invoice.exe	97
PID 4592 wrote to memory of 3828	4592	Invoice.exe	97
PID 4592 wrote to memory of 3828	4592	Invoice.exe	97
PID 4592 wrote to memory of 3828	4592	Invoice.exe	97

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice.exe

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Users\Admin\AppData\Local\Temp\Invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
  2⤵
  PID:4228
- C:\Users\Admin\AppData\Local\Temp\Invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

Invoice.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Invoice.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

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memory/3828-13-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/3828-22-0x0000000005710000-0x0000000005720000-memory.dmp

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memory/3828-21-0x00000000749D0000-0x0000000075180000-memory.dmp

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memory/3828-20-0x0000000006B30000-0x0000000006CF2000-memory.dmp

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memory/3828-19-0x0000000006910000-0x0000000006960000-memory.dmp

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memory/3828-18-0x0000000005710000-0x0000000005720000-memory.dmp

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memory/3828-16-0x00000000749D0000-0x0000000075180000-memory.dmp

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memory/4592-5-0x0000000004C60000-0x0000000004C6A000-memory.dmp

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memory/4592-6-0x0000000004E90000-0x0000000004F2C000-memory.dmp

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memory/4592-10-0x0000000004F70000-0x0000000004F7A000-memory.dmp

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memory/4592-11-0x0000000006170000-0x000000000617C000-memory.dmp

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memory/4592-12-0x0000000007720000-0x000000000779A000-memory.dmp

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memory/4592-8-0x00000000749D0000-0x0000000075180000-memory.dmp

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memory/4592-7-0x0000000004E40000-0x0000000004E58000-memory.dmp

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memory/4592-9-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

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memory/4592-17-0x00000000749D0000-0x0000000075180000-memory.dmp

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memory/4592-1-0x0000000000260000-0x0000000000304000-memory.dmp

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memory/4592-4-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

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memory/4592-3-0x0000000004BB0000-0x0000000004C42000-memory.dmp

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memory/4592-2-0x0000000005280000-0x0000000005824000-memory.dmp

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memory/4592-0-0x00000000749D0000-0x0000000075180000-memory.dmp

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