outsteel | 434d39bfbcee378ed62a02aa40acc6507aa00b2a3cb0bf356c0b23cc9eebcd77

Analysis

max time kernel
92s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-04-2024 10:36

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General

Target

NewCovid-21/08042021.exe
Size

598KB
MD5

e4855693722de3856421b1b6920ba54d
SHA1

9c50313f3b6d84a2b063d0acca64417bfe283d6d
SHA256

0e1e2f87699a24d1d7b0d984c3622971028a0cafaf665c791c70215f76c7c8fe
SHA512

5373fc8ac2839520492ac6fa03758ad9781c7a840b9091dba4e3b0f197519e7343de434f2e10ff55e85be8eea1f6f425e4b2f6a343b374852011c02ad70fbba5
SSDEEP

12288:DsUwIuFHm5rgI6nU3jmUd0/ubH8dFZwB/aJ/0S:dduFIonUz0/umF6Vmj

Score

10^/10

outsteel spyware stealer

Malware Config

Signatures

OutSteel
OutSteel is a file uploader and document stealer written in AutoIT.
stealer outsteel

OutSteel batch script 1 IoCs

Detects batch script dropped by OutSteel

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\NewCovid-21\r.bat	outsteel_batch_script

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

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

08042021.exe

description	ioc	process
File opened (read-only)	\??\o:	08042021.exe
File opened (read-only)	\??\p:	08042021.exe
File opened (read-only)	\??\w:	08042021.exe
File opened (read-only)	\??\x:	08042021.exe
File opened (read-only)	\??\a:	08042021.exe
File opened (read-only)	\??\h:	08042021.exe
File opened (read-only)	\??\m:	08042021.exe
File opened (read-only)	\??\s:	08042021.exe
File opened (read-only)	\??\u:	08042021.exe
File opened (read-only)	\??\y:	08042021.exe
File opened (read-only)	\??\g:	08042021.exe
File opened (read-only)	\??\i:	08042021.exe
File opened (read-only)	\??\q:	08042021.exe
File opened (read-only)	\??\e:	08042021.exe
File opened (read-only)	\??\l:	08042021.exe
File opened (read-only)	\??\z:	08042021.exe
File opened (read-only)	\??\n:	08042021.exe
File opened (read-only)	\??\r:	08042021.exe
File opened (read-only)	\??\t:	08042021.exe
File opened (read-only)	\??\v:	08042021.exe
File opened (read-only)	\??\b:	08042021.exe
File opened (read-only)	\??\j:	08042021.exe
File opened (read-only)	\??\k:	08042021.exe

AutoIT Executable 4 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/2116-2-0x0000000004A90000-0x0000000004B6D000-memory.dmp	autoit_exe
behavioral2/memory/2116-3-0x0000000000400000-0x0000000002C06000-memory.dmp	autoit_exe
behavioral2/memory/2116-6-0x0000000000400000-0x0000000002C06000-memory.dmp	autoit_exe
behavioral2/memory/2116-7-0x0000000004A90000-0x0000000004B6D000-memory.dmp	autoit_exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3180 2116 WerFault.exe 08042021.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4684 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4684 taskkill.exe

pid	pid_target	process	target process
3180	2116	WerFault.exe	08042021.exe

pid	process
4684	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4684	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

08042021.exe

description	pid	process	target process
PID 2116 wrote to memory of 2000	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2000	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2000	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 3880	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 3880	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 3880	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4720	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4720	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4720	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4976	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4976	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4976	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2848	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2848	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2848	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4444	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4444	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4444	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2456	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2456	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2456	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 1852	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 1852	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 1852	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4020	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4020	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4020	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 1524	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 1524	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 1524	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2684	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2684	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2684	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2628	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2628	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 2628	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4852	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4852	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4852	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4200	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4200	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4200	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 1612	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 1612	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 1612	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 548	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 548	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 548	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4768	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4768	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4768	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4092	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4092	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4092	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4584	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4584	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4584	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4968	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4968	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4968	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4568	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4568	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 4568	2116	08042021.exe	cmd.exe
PID 2116 wrote to memory of 3172	2116	08042021.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\NewCovid-21\08042021.exe
"C:\Users\Admin\AppData\Local\Temp\NewCovid-21\08042021.exe"
1⤵
- Enumerates connected drives
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.doc" /S /B /A
  2⤵
  PID:2000
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pdf" /S /B /A
  2⤵
  PID:3880
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
  2⤵
  PID:4720
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
  2⤵
  PID:4976
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
  2⤵
  PID:2848
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
  2⤵
  PID:4444
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
  2⤵
  PID:2456
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
  2⤵
  PID:1852
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
  2⤵
  PID:4020
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
  2⤵
  PID:1524
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
  2⤵
  PID:2684
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
  2⤵
  PID:2628
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppa" /S /B /A
  2⤵
  PID:4852
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rar" /S /B /A
  2⤵
  PID:4200
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
  2⤵
  PID:1612
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
  2⤵
  PID:548
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
  2⤵
  PID:4768
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.doc" /S /B /A
  2⤵
  PID:4092
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pdf" /S /B /A
  2⤵
  PID:4584
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.ppt" /S /B /A
  2⤵
  PID:4968
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.dot" /S /B /A
  2⤵
  PID:4568
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.xl" /S /B /A
  2⤵
  PID:3172
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.csv" /S /B /A
  2⤵
  PID:3956
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.rtf" /S /B /A
  2⤵
  PID:3960
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.dot" /S /B /A
  2⤵
  PID:3720
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.mdb" /S /B /A
  2⤵
  PID:1764
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.accdb" /S /B /A
  2⤵
  PID:2760
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pot" /S /B /A
  2⤵
  PID:2256
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pps" /S /B /A
  2⤵
  PID:3852
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.ppa" /S /B /A
  2⤵
  PID:1564
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.rar" /S /B /A
  2⤵
  PID:3276
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.zip" /S /B /A
  2⤵
  PID:1852
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.tar" /S /B /A
  2⤵
  PID:2524
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.7z" /S /B /A
  2⤵
  PID:2668
- C:\Windows\SysWOW64\cmd.exe
  cmd /c start /min r.bat
  2⤵
  PID:2168
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K r.bat
    3⤵
    PID:1452
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /min /c del "C:\Users\Admin\AppData\Local\Temp\NewCovid-21\r.bat"
      4⤵
      PID:1016
  - - C:\Windows\SysWOW64\taskkill.exe
      Taskkill /IM cmd.exe /F
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:4684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 1984
  2⤵
  - Program crash
  PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2116 -ip 2116
1⤵
PID:4428

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

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\NewCovid-21\r.bat

Filesize
144B

MD5
b5ad26e1e63f33007e07116b9af012e2

SHA1
8be4a19bbd66392f3b424aa78ea3fade69ccdef8

SHA256
aa594fbd3204368ef365a67ae4bc6488e77e8d3cd80d1970bd05cd7a0e1eb1f7

SHA512
f14f213f45e87aaa01157edd65e804ec698a9ad41e04afe971474cae6204d63230c57e5d098470af6e2964e9bb3b6cee933157f8057f955b1670431fe49c3b70

Download Submit
memory/2116-1-0x0000000002D80000-0x0000000002E80000-memory.dmp

Filesize
1024KB

Download
memory/2116-2-0x0000000004A90000-0x0000000004B6D000-memory.dmp

Filesize
884KB

Download
memory/2116-3-0x0000000000400000-0x0000000002C06000-memory.dmp

Filesize
40.0MB

Download
memory/2116-6-0x0000000000400000-0x0000000002C06000-memory.dmp

Filesize
40.0MB

Download
memory/2116-7-0x0000000004A90000-0x0000000004B6D000-memory.dmp

Filesize
884KB

Download