oski | e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 22:02

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General

Target

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
Size

416KB
MD5

4b4b842e67389dbaa6756b528c317370
SHA1

344abedefc91910c9feaa05c18714b067525e555
SHA256

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed
SHA512

ac773f956aaccc2d0ede13ae2814f29c2b259d59a8a9a66ea761595a47c0c162f0b457d79ac1775050a21bc00486c08d1a52b179d8ff9b61b116e3b5e5e01e06
SSDEEP

6144:pb+QWIhV2WPguI87PQOB3xbkuZanpNh2w75aqfyjL6KSgDoaC/MtStAr5ijt+g2U:AQnrw7AqfcLTSgEEVijNsED

Score

10^/10

oski discovery infostealer spyware stealer

Malware Config

Extracted

Family

oski

maurizio.ug

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Oski family
oski

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

Processes:

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

description	pid	Process	procid_target
PID 2916 set thread context of 2884	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	105

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

System Information Discovery
T1082

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
3692	2884	WerFault.exe	105

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

Processes:

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exepowershell.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exee9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

pid	Process
3524	powershell.exe
3524	powershell.exe
2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	3524	powershell.exe
Token: SeIncreaseQuotaPrivilege	3524	powershell.exe
Token: SeSecurityPrivilege	3524	powershell.exe
Token: SeTakeOwnershipPrivilege	3524	powershell.exe
Token: SeLoadDriverPrivilege	3524	powershell.exe
Token: SeSystemProfilePrivilege	3524	powershell.exe
Token: SeSystemtimePrivilege	3524	powershell.exe
Token: SeProfSingleProcessPrivilege	3524	powershell.exe
Token: SeIncBasePriorityPrivilege	3524	powershell.exe
Token: SeCreatePagefilePrivilege	3524	powershell.exe
Token: SeBackupPrivilege	3524	powershell.exe
Token: SeRestorePrivilege	3524	powershell.exe
Token: SeShutdownPrivilege	3524	powershell.exe
Token: SeDebugPrivilege	3524	powershell.exe
Token: SeSystemEnvironmentPrivilege	3524	powershell.exe
Token: SeRemoteShutdownPrivilege	3524	powershell.exe
Token: SeUndockPrivilege	3524	powershell.exe
Token: SeManageVolumePrivilege	3524	powershell.exe
Token: 33	3524	powershell.exe
Token: 34	3524	powershell.exe
Token: 35	3524	powershell.exe
Token: 36	3524	powershell.exe
Token: SeIncreaseQuotaPrivilege	3524	powershell.exe
Token: SeSecurityPrivilege	3524	powershell.exe
Token: SeTakeOwnershipPrivilege	3524	powershell.exe
Token: SeLoadDriverPrivilege	3524	powershell.exe
Token: SeSystemProfilePrivilege	3524	powershell.exe
Token: SeSystemtimePrivilege	3524	powershell.exe
Token: SeProfSingleProcessPrivilege	3524	powershell.exe
Token: SeIncBasePriorityPrivilege	3524	powershell.exe
Token: SeCreatePagefilePrivilege	3524	powershell.exe
Token: SeBackupPrivilege	3524	powershell.exe
Token: SeRestorePrivilege	3524	powershell.exe
Token: SeShutdownPrivilege	3524	powershell.exe
Token: SeDebugPrivilege	3524	powershell.exe
Token: SeSystemEnvironmentPrivilege	3524	powershell.exe
Token: SeRemoteShutdownPrivilege	3524	powershell.exe
Token: SeUndockPrivilege	3524	powershell.exe
Token: SeManageVolumePrivilege	3524	powershell.exe
Token: 33	3524	powershell.exe
Token: 34	3524	powershell.exe
Token: 35	3524	powershell.exe
Token: 36	3524	powershell.exe
Token: SeIncreaseQuotaPrivilege	3524	powershell.exe
Token: SeSecurityPrivilege	3524	powershell.exe
Token: SeTakeOwnershipPrivilege	3524	powershell.exe
Token: SeLoadDriverPrivilege	3524	powershell.exe
Token: SeSystemProfilePrivilege	3524	powershell.exe
Token: SeSystemtimePrivilege	3524	powershell.exe
Token: SeProfSingleProcessPrivilege	3524	powershell.exe
Token: SeIncBasePriorityPrivilege	3524	powershell.exe
Token: SeCreatePagefilePrivilege	3524	powershell.exe
Token: SeBackupPrivilege	3524	powershell.exe
Token: SeRestorePrivilege	3524	powershell.exe
Token: SeShutdownPrivilege	3524	powershell.exe
Token: SeDebugPrivilege	3524	powershell.exe
Token: SeSystemEnvironmentPrivilege	3524	powershell.exe
Token: SeRemoteShutdownPrivilege	3524	powershell.exe
Token: SeUndockPrivilege	3524	powershell.exe
Token: SeManageVolumePrivilege	3524	powershell.exe
Token: 33	3524	powershell.exe
Token: 34	3524	powershell.exe
Token: 35	3524	powershell.exe
Token: 36	3524	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

description	pid	Process	procid_target
PID 2916 wrote to memory of 3524	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	84
PID 2916 wrote to memory of 3524	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	84
PID 2916 wrote to memory of 3524	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	84
PID 2916 wrote to memory of 2884	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	105
PID 2916 wrote to memory of 2884	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	105
PID 2916 wrote to memory of 2884	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	105
PID 2916 wrote to memory of 2884	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	105
PID 2916 wrote to memory of 2884	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	105
PID 2916 wrote to memory of 2884	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	105
PID 2916 wrote to memory of 2884	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	105
PID 2916 wrote to memory of 2884	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	105
PID 2916 wrote to memory of 2884	2916	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	105

C:\Users\Admin\AppData\Local\Temp\e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
"C:\Users\Admin\AppData\Local\Temp\e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-NetConnection
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3524
- C:\Users\Admin\AppData\Local\Temp\e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
  C:\Users\Admin\AppData\Local\Temp\e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
  2⤵
  PID:2884
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2884 -s 1296
    3⤵
    - Program crash
    PID:3692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2884 -ip 2884
1⤵
PID:3292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_elzmfj0b.vwm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2884-62-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2884-66-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2884-60-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2884-61-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2884-58-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2916-57-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2916-63-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2916-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/2916-1-0x0000000000420000-0x000000000048C000-memory.dmp

Filesize
432KB

Download
memory/2916-56-0x0000000004E80000-0x0000000004EA8000-memory.dmp

Filesize
160KB

Download
memory/2916-55-0x0000000004E30000-0x0000000004E76000-memory.dmp

Filesize
280KB

Download
memory/2916-49-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/3524-38-0x0000000007580000-0x0000000007BFA000-memory.dmp

Filesize
6.5MB

Download
memory/3524-45-0x0000000007410000-0x000000000743A000-memory.dmp

Filesize
168KB

Download
memory/3524-34-0x0000000006160000-0x000000000617E000-memory.dmp

Filesize
120KB

Download
memory/3524-36-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-37-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-35-0x0000000006E50000-0x0000000006EF3000-memory.dmp

Filesize
652KB

Download
memory/3524-23-0x0000000006B60000-0x0000000006B92000-memory.dmp

Filesize
200KB

Download
memory/3524-22-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-39-0x0000000006C20000-0x0000000006C3A000-memory.dmp

Filesize
104KB

Download
memory/3524-21-0x00000000060C0000-0x000000000610C000-memory.dmp

Filesize
304KB

Download
memory/3524-40-0x0000000006F40000-0x0000000006F4A000-memory.dmp

Filesize
40KB

Download
memory/3524-41-0x0000000007170000-0x0000000007206000-memory.dmp

Filesize
600KB

Download
memory/3524-42-0x00000000070E0000-0x00000000070F1000-memory.dmp

Filesize
68KB

Download
memory/3524-44-0x00000000073B0000-0x00000000073CA000-memory.dmp

Filesize
104KB

Download
memory/3524-43-0x0000000007270000-0x0000000007280000-memory.dmp

Filesize
64KB

Download
memory/3524-24-0x000000006FFF0000-0x000000007003C000-memory.dmp

Filesize
304KB

Download
memory/3524-46-0x0000000007440000-0x0000000007464000-memory.dmp

Filesize
144KB

Download
memory/3524-47-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-48-0x00000000073F0000-0x00000000073FE000-memory.dmp

Filesize
56KB

Download
memory/3524-20-0x0000000005B90000-0x0000000005BAE000-memory.dmp

Filesize
120KB

Download
memory/3524-50-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-51-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-54-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-19-0x0000000005790000-0x0000000005AE4000-memory.dmp

Filesize
3.3MB

Download
memory/3524-7-0x00000000053D0000-0x0000000005436000-memory.dmp

Filesize
408KB

Download
memory/3524-9-0x0000000005440000-0x00000000054A6000-memory.dmp

Filesize
408KB

Download
memory/3524-8-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-6-0x0000000005330000-0x0000000005352000-memory.dmp

Filesize
136KB

Download
memory/3524-4-0x0000000004CA0000-0x00000000052C8000-memory.dmp

Filesize
6.2MB

Download
memory/3524-5-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-3-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-2-0x00000000022A0000-0x00000000022D6000-memory.dmp

Filesize
216KB

Download