oski | 7d12860910f95752bab43166470d3ac6dd1b8be3599bae2fca48aa1d01d1034a

Analysis

max time kernel
137s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
20-03-2024 10:28

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General

Target

d89300e103bfd617274ee22294bcc16c.exe
Size

759KB
MD5

d89300e103bfd617274ee22294bcc16c
SHA1

bdf3d1ee7760dea64c34cd93c4103ad100a9bf9e
SHA256

7d12860910f95752bab43166470d3ac6dd1b8be3599bae2fca48aa1d01d1034a
SHA512

d57539ae0069b70e4af5d904902cdf3c9c0249400ec774cecc4b9b32a594a81b99a2c9a938561ff84af7c48629284235d2625396b5a9d5a889ef019d0fefa892
SSDEEP

6144:7JAPTiU4IvFjEqIZg/0e6WJjHYhBY8NP7FFNG+B3IKKLnGENHp6XhBgR7NCE:KriRIvBEqIZ1kHsNPDN9lLKLNHwRB

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

http://bctpump.us

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3668 set thread context of 3076	3668	d89300e103bfd617274ee22294bcc16c.exe	108

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1912	3076	WerFault.exe	108

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3668	d89300e103bfd617274ee22294bcc16c.exe
3668	d89300e103bfd617274ee22294bcc16c.exe
3668	d89300e103bfd617274ee22294bcc16c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3668	d89300e103bfd617274ee22294bcc16c.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3668 wrote to memory of 3076	3668	d89300e103bfd617274ee22294bcc16c.exe	108
PID 3668 wrote to memory of 3076	3668	d89300e103bfd617274ee22294bcc16c.exe	108
PID 3668 wrote to memory of 3076	3668	d89300e103bfd617274ee22294bcc16c.exe	108
PID 3668 wrote to memory of 3076	3668	d89300e103bfd617274ee22294bcc16c.exe	108
PID 3668 wrote to memory of 3076	3668	d89300e103bfd617274ee22294bcc16c.exe	108
PID 3668 wrote to memory of 3076	3668	d89300e103bfd617274ee22294bcc16c.exe	108
PID 3668 wrote to memory of 3076	3668	d89300e103bfd617274ee22294bcc16c.exe	108
PID 3668 wrote to memory of 3076	3668	d89300e103bfd617274ee22294bcc16c.exe	108
PID 3668 wrote to memory of 3076	3668	d89300e103bfd617274ee22294bcc16c.exe	108

C:\Users\Admin\AppData\Local\Temp\d89300e103bfd617274ee22294bcc16c.exe
"C:\Users\Admin\AppData\Local\Temp\d89300e103bfd617274ee22294bcc16c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3668
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:3076
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 1280
    3⤵
    - Program crash
    PID:1912

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1340 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:3056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3076 -ip 3076
1⤵
PID:3488

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\ProgramData\msvcp140.dll

Filesize
175B

MD5
a7eca2913e9112121e5585480b1f7c82

SHA1
8202e28c75f97352c0545b1a05d2a902a1c5664b

SHA256
60bd258837c33a9abb899bc6d6393da70afe5bf2dfd9b560f47092a9c43ba43a

SHA512
f6ceabaa4f567fa98f6758e7605fdf473f4ae0f26b0be1c5d0ef8e456421c4a8b487ed7b6042469d81daf7142eee8cd382a8a169972ea7accf9eb079e62f9f46

Download Submit
memory/3076-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3076-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3076-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3076-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3076-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3668-4-0x00000000058F0000-0x0000000005900000-memory.dmp

Filesize
64KB

Download
memory/3668-7-0x0000000006B00000-0x0000000006B9C000-memory.dmp

Filesize
624KB

Download
memory/3668-8-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/3668-9-0x00000000058F0000-0x0000000005900000-memory.dmp

Filesize
64KB

Download
memory/3668-10-0x0000000001490000-0x00000000014FE000-memory.dmp

Filesize
440KB

Download
memory/3668-11-0x0000000006A60000-0x0000000006AA0000-memory.dmp

Filesize
256KB

Download
memory/3668-6-0x0000000005B30000-0x0000000005B4C000-memory.dmp

Filesize
112KB

Download
memory/3668-5-0x00000000056A0000-0x00000000056AA000-memory.dmp

Filesize
40KB

Download
memory/3668-0-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/3668-3-0x00000000056C0000-0x0000000005752000-memory.dmp

Filesize
584KB

Download
memory/3668-17-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/3668-2-0x0000000005BD0000-0x0000000006174000-memory.dmp

Filesize
5.6MB

Download
memory/3668-1-0x0000000000BC0000-0x0000000000C84000-memory.dmp

Filesize
784KB

Download