2d33ed1adc84c7684fb8170009e565e72dbde2346f6eb9c59ac3356a63b91ea0

General

Target

PO24_004340~1.exe
Size

219KB
MD5

4c3f6e88fd3d7853b737daab33e64724
SHA1

0bc2cdea6d8faaae294b8daaa2df03a1267ce1e3
SHA256

697bc12eb33d2db2d4611cfa986f7aa32ed1d3d94d04c5536ec210af3e914319
SHA512

da96c89091c5e3a50e4538cff2bd57c9d0ac2d1a88d551f85ae3efc0bb017b2cf2fdba316630379e82fab74449627f5cb2f8dce3bc51016c6d78499467b5418f
SSDEEP

3072:QArRIzPm7i7x2KhtCqE5bpcqiipyAd9g8QwyeVTmfxz6AR+xx7CG9jeIUV:r4PO62KI5dcdipld9grwCJ66cZjV

Score

7^/10

collection discovery 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 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Looks up external IP address via web service 3 IoCs

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

flow	ioc
8	reallyfreegeoip.org
9	reallyfreegeoip.org
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2612 set thread context of 2316	2612	PO24_004340~1.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO24_004340~1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2316	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2316	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31
PID 2612 wrote to memory of 2316	2612	PO24_004340~1.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\PO24_004340~1.exe
"C:\Users\Admin\AppData\Local\Temp\PO24_004340~1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2316-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2316-8-0x0000000000090000-0x00000000000AE000-memory.dmp

Filesize
120KB

Download
memory/2316-5-0x0000000000090000-0x00000000000AE000-memory.dmp

Filesize
120KB

Download
memory/2316-6-0x0000000000090000-0x00000000000AE000-memory.dmp

Filesize
120KB

Download
memory/2316-7-0x0000000000090000-0x00000000000AE000-memory.dmp

Filesize
120KB

Download
memory/2316-20-0x0000000000090000-0x00000000000AE000-memory.dmp

Filesize
120KB

Download
memory/2316-13-0x0000000000090000-0x00000000000AE000-memory.dmp

Filesize
120KB

Download
memory/2316-12-0x0000000000090000-0x00000000000AE000-memory.dmp

Filesize
120KB

Download
memory/2316-17-0x0000000000090000-0x00000000000AE000-memory.dmp

Filesize
120KB

Download
memory/2612-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2612-1-0x0000000001030000-0x000000000106E000-memory.dmp

Filesize
248KB

Download
memory/2612-4-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2612-3-0x00000000003E0000-0x00000000003F2000-memory.dmp

Filesize
72KB

Download
memory/2612-2-0x00000000002E0000-0x0000000000316000-memory.dmp

Filesize
216KB

Download
memory/2612-21-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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