oski | 1b466bd2985862702ab9fb242e0c79e27dd2c4b4c676d9ba44d6bef3e93b1534

Analysis

max time kernel
43s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 13:26

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General

Target

f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe
Size

397KB
MD5

f5e11b62f485aa1e95073c665a147cd2
SHA1

d71acedc812f72756b756e23fbc5c756d163ad48
SHA256

1b466bd2985862702ab9fb242e0c79e27dd2c4b4c676d9ba44d6bef3e93b1534
SHA512

df152055bb196822c638cf0a824907884076ebb65200535362d545a1d5c78e29631c8cef2651c1a944e43ac74b554ec4156efe36acf3465824a96f37e28fed96
SSDEEP

12288:VVWv1DWVrUhKHElWxsGTnBF1gIscpMz2+DPqMYIa7Pm6:VcDWVr0eE1UnBF1ggGz5bnYIa7

Score

10^/10

oski zgrat infostealer rat spyware stealer

Malware Config

Extracted

Family

oski

hsagoi.ac.ug

Signatures

Detect ZGRat V1 34 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1036-9-0x0000000006880000-0x00000000068F8000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-11-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-13-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-17-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-15-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-19-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-23-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-21-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-25-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-10-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-27-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-31-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-29-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-33-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-35-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-37-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-41-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-39-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-43-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-45-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-47-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-49-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-53-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-51-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-55-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-59-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-61-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-57-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-63-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-65-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-67-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-69-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-71-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1
behavioral2/memory/1036-73-0x0000000006880000-0x00000000068F1000-memory.dmp	family_zgrat_v1

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
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

Suspicious use of SetThreadContext 1 IoCs

Processes:

f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1036 set thread context of 3576	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe	83

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
3480	3576	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe

pid	Process
1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe
1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe

description	pid	Process
Token: SeDebugPrivilege	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1036 wrote to memory of 3576	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe	83
PID 1036 wrote to memory of 3576	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe	83
PID 1036 wrote to memory of 3576	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe	83
PID 1036 wrote to memory of 3576	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe	83
PID 1036 wrote to memory of 3576	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe	83
PID 1036 wrote to memory of 3576	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe	83
PID 1036 wrote to memory of 3576	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe	83
PID 1036 wrote to memory of 3576	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe	83
PID 1036 wrote to memory of 3576	1036	f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1036
- C:\Users\Admin\AppData\Local\Temp\f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f5e11b62f485aa1e95073c665a147cd2_JaffaCakes118.exe
  2⤵
  PID:3576
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3576 -s 1288
    3⤵
    - Program crash
    PID:3480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3576 -ip 3576
1⤵
PID:3512

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1036-0-0x00000000001A0000-0x000000000020A000-memory.dmp

Filesize
424KB

Download
memory/1036-1-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/1036-2-0x00000000051E0000-0x0000000005784000-memory.dmp

Filesize
5.6MB

Download
memory/1036-3-0x0000000004C30000-0x0000000004CC2000-memory.dmp

Filesize
584KB

Download
memory/1036-4-0x0000000004E20000-0x0000000004E30000-memory.dmp

Filesize
64KB

Download
memory/1036-5-0x0000000004BC0000-0x0000000004BCA000-memory.dmp

Filesize
40KB

Download
memory/1036-6-0x00000000065D0000-0x0000000006646000-memory.dmp

Filesize
472KB

Download
memory/1036-7-0x0000000006560000-0x00000000065BE000-memory.dmp

Filesize
376KB

Download
memory/1036-8-0x0000000006790000-0x00000000067AE000-memory.dmp

Filesize
120KB

Download
memory/1036-9-0x0000000006880000-0x00000000068F8000-memory.dmp

Filesize
480KB

Download
memory/1036-11-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-13-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-17-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-15-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-19-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-23-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-21-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-25-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-10-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-27-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-31-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-29-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-33-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-35-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-37-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-41-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-39-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-43-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-45-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-47-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-49-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-53-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-51-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-55-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-59-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-61-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-57-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-63-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-65-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-67-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-69-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-71-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-73-0x0000000006880000-0x00000000068F1000-memory.dmp

Filesize
452KB

Download
memory/1036-274-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/1036-1654-0x0000000004E20000-0x0000000004E30000-memory.dmp

Filesize
64KB

Download
memory/1036-2386-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3576-2387-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3576-2390-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download