oski | b43dde5ca3d23d16af5bf34c522869dff9624a78be67dfc3acde5c81ef24d318

Analysis

max time kernel
139s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29-03-2024 10:34

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General

Target

1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe
Size

1.2MB
MD5

1fbf4813a6c6fd9c55e8f8c8beb200f3
SHA1

648e3959c35790655ebaddd1bec2902938cdd540
SHA256

b43dde5ca3d23d16af5bf34c522869dff9624a78be67dfc3acde5c81ef24d318
SHA512

bffb6f378b581650ed74b6e00b28178a94b4584bf841d774bb867debb7b54dd1396c1ae33159c02301b334e8576958836740515efc17a362f56578ac31e7638f
SSDEEP

24576:TWFOBlUXQd4h4RJgaCN2es8nIrJ3hrFxEPw5IMuYU:DB2Ad4acT3IrJhrFxEY5IMuY

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

secureconnection.xyz

Signatures

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4296 set thread context of 2348	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	102

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2352	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe
4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe
4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe
4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe
3996	powershell.exe
3996	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe
Token: SeDebugPrivilege	3996	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 3996	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	97
PID 4296 wrote to memory of 3996	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	97
PID 4296 wrote to memory of 3996	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	97
PID 4296 wrote to memory of 2352	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	99
PID 4296 wrote to memory of 2352	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	99
PID 4296 wrote to memory of 2352	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	99
PID 4296 wrote to memory of 4636	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	100
PID 4296 wrote to memory of 4636	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	100
PID 4296 wrote to memory of 4636	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	100
PID 4296 wrote to memory of 2348	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	102
PID 4296 wrote to memory of 2348	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	102
PID 4296 wrote to memory of 2348	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	102
PID 4296 wrote to memory of 2348	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	102
PID 4296 wrote to memory of 2348	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	102
PID 4296 wrote to memory of 2348	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	102
PID 4296 wrote to memory of 2348	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	102
PID 4296 wrote to memory of 2348	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	102
PID 4296 wrote to memory of 2348	4296	1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe	102

C:\Users\Admin\AppData\Local\Temp\1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3996
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VWSIPxIbJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC014.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2352
- C:\Users\Admin\AppData\Local\Temp\1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe"
  2⤵
  PID:4636
- C:\Users\Admin\AppData\Local\Temp\1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\1fbf4813a6c6fd9c55e8f8c8beb200f3_JaffaCakes118.exe"
  2⤵
  PID:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qg4bgpk0.fgg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2348-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2348-68-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2348-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2348-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2348-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3996-27-0x0000000004F70000-0x0000000004F92000-memory.dmp

Filesize
136KB

Download
memory/3996-39-0x0000000005C90000-0x0000000005FE4000-memory.dmp

Filesize
3.3MB

Download
memory/3996-67-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/3996-64-0x0000000007690000-0x0000000007698000-memory.dmp

Filesize
32KB

Download
memory/3996-63-0x00000000076B0000-0x00000000076CA000-memory.dmp

Filesize
104KB

Download
memory/3996-62-0x00000000075B0000-0x00000000075C4000-memory.dmp

Filesize
80KB

Download
memory/3996-16-0x0000000002710000-0x0000000002746000-memory.dmp

Filesize
216KB

Download
memory/3996-19-0x0000000005220000-0x0000000005848000-memory.dmp

Filesize
6.2MB

Download
memory/3996-18-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/3996-21-0x0000000002860000-0x0000000002870000-memory.dmp

Filesize
64KB

Download
memory/3996-23-0x0000000002860000-0x0000000002870000-memory.dmp

Filesize
64KB

Download
memory/3996-61-0x00000000075A0000-0x00000000075AE000-memory.dmp

Filesize
56KB

Download
memory/3996-60-0x0000000007570000-0x0000000007581000-memory.dmp

Filesize
68KB

Download
memory/3996-59-0x00000000075F0000-0x0000000007686000-memory.dmp

Filesize
600KB

Download
memory/3996-58-0x00000000073E0000-0x00000000073EA000-memory.dmp

Filesize
40KB

Download
memory/3996-28-0x0000000005110000-0x0000000005176000-memory.dmp

Filesize
408KB

Download
memory/3996-57-0x0000000007370000-0x000000000738A000-memory.dmp

Filesize
104KB

Download
memory/3996-56-0x00000000079B0000-0x000000000802A000-memory.dmp

Filesize
6.5MB

Download
memory/3996-29-0x0000000005950000-0x00000000059B6000-memory.dmp

Filesize
408KB

Download
memory/3996-55-0x0000000007030000-0x00000000070D3000-memory.dmp

Filesize
652KB

Download
memory/3996-40-0x0000000006040000-0x000000000605E000-memory.dmp

Filesize
120KB

Download
memory/3996-41-0x0000000006090000-0x00000000060DC000-memory.dmp

Filesize
304KB

Download
memory/3996-42-0x000000007EFA0000-0x000000007EFB0000-memory.dmp

Filesize
64KB

Download
memory/3996-43-0x0000000006610000-0x0000000006642000-memory.dmp

Filesize
200KB

Download
memory/3996-44-0x0000000070610000-0x000000007065C000-memory.dmp

Filesize
304KB

Download
memory/3996-54-0x0000000007010000-0x000000000702E000-memory.dmp

Filesize
120KB

Download
memory/4296-7-0x0000000005150000-0x000000000515A000-memory.dmp

Filesize
40KB

Download
memory/4296-2-0x0000000005480000-0x0000000005A24000-memory.dmp

Filesize
5.6MB

Download
memory/4296-1-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/4296-3-0x0000000004DD0000-0x0000000004E62000-memory.dmp

Filesize
584KB

Download
memory/4296-26-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/4296-4-0x0000000004F40000-0x0000000004F50000-memory.dmp

Filesize
64KB

Download
memory/4296-5-0x0000000004E90000-0x0000000004E9A000-memory.dmp

Filesize
40KB

Download
memory/4296-6-0x00000000065A0000-0x000000000663C000-memory.dmp

Filesize
624KB

Download
memory/4296-10-0x00000000067D0000-0x000000000689C000-memory.dmp

Filesize
816KB

Download
memory/4296-9-0x0000000004F40000-0x0000000004F50000-memory.dmp

Filesize
64KB

Download
memory/4296-8-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/4296-0-0x0000000000310000-0x000000000044A000-memory.dmp

Filesize
1.2MB

Download