outsteel | 3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c

Analysis

max time kernel
4294181s
max time network
124s
platform
windows7_x64
resource
win7-20220223-en
submitted
28-02-2022 03:11

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General

Target

3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
Size

598KB
MD5

45abce50a00d40dff21edb7264824758
SHA1

0861d2abbcf16bf6394dc7aadd341b348a3c8c4d
SHA256

3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c
SHA512

7097f34634f716609bc4bbe27af511a9fec24c555c25c22e712f3ce019b471328226030bb2939692f36a81cc24de105670b263d0fb7036375e60c8ddaee2a8f6

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

resource	yara_rule
behavioral1/files/0x0004000000004ed7-59.dat	outsteel_batch_script

Deletes itself 1 IoCs

pid	Process
1948	cmd.exe

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
T1081

Enumerates connected drives 3 TTPs 24 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

description	ioc	Process
File opened (read-only)	\??\s:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\t:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\u:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\w:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\y:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\k:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\n:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\p:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\l:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\q:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\x:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\b:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\e:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\i:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\v:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\f:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\g:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\r:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\m:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\o:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\z:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\a:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\h:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
File opened (read-only)	\??\j:	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/1236-57-0x0000000000300000-0x00000000003DD000-memory.dmp	autoit_exe
behavioral1/memory/1236-58-0x0000000000400000-0x00000000004E2000-memory.dmp	autoit_exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1912	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1912	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 1612	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	27
PID 1236 wrote to memory of 1612	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	27
PID 1236 wrote to memory of 1612	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	27
PID 1236 wrote to memory of 1612	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	27
PID 1236 wrote to memory of 564	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	29
PID 1236 wrote to memory of 564	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	29
PID 1236 wrote to memory of 564	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	29
PID 1236 wrote to memory of 564	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	29
PID 1236 wrote to memory of 240	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	31
PID 1236 wrote to memory of 240	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	31
PID 1236 wrote to memory of 240	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	31
PID 1236 wrote to memory of 240	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	31
PID 1236 wrote to memory of 620	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	33
PID 1236 wrote to memory of 620	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	33
PID 1236 wrote to memory of 620	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	33
PID 1236 wrote to memory of 620	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	33
PID 1236 wrote to memory of 1892	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	35
PID 1236 wrote to memory of 1892	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	35
PID 1236 wrote to memory of 1892	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	35
PID 1236 wrote to memory of 1892	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	35
PID 1236 wrote to memory of 1960	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	37
PID 1236 wrote to memory of 1960	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	37
PID 1236 wrote to memory of 1960	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	37
PID 1236 wrote to memory of 1960	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	37
PID 1236 wrote to memory of 1912	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	39
PID 1236 wrote to memory of 1912	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	39
PID 1236 wrote to memory of 1912	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	39
PID 1236 wrote to memory of 1912	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	39
PID 1236 wrote to memory of 824	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	41
PID 1236 wrote to memory of 824	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	41
PID 1236 wrote to memory of 824	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	41
PID 1236 wrote to memory of 824	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	41
PID 1236 wrote to memory of 840	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	43
PID 1236 wrote to memory of 840	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	43
PID 1236 wrote to memory of 840	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	43
PID 1236 wrote to memory of 840	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	43
PID 1236 wrote to memory of 1720	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	45
PID 1236 wrote to memory of 1720	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	45
PID 1236 wrote to memory of 1720	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	45
PID 1236 wrote to memory of 1720	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	45
PID 1236 wrote to memory of 1004	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	47
PID 1236 wrote to memory of 1004	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	47
PID 1236 wrote to memory of 1004	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	47
PID 1236 wrote to memory of 1004	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	47
PID 1236 wrote to memory of 1520	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	49
PID 1236 wrote to memory of 1520	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	49
PID 1236 wrote to memory of 1520	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	49
PID 1236 wrote to memory of 1520	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	49
PID 1236 wrote to memory of 1684	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	51
PID 1236 wrote to memory of 1684	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	51
PID 1236 wrote to memory of 1684	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	51
PID 1236 wrote to memory of 1684	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	51
PID 1236 wrote to memory of 1704	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	53
PID 1236 wrote to memory of 1704	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	53
PID 1236 wrote to memory of 1704	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	53
PID 1236 wrote to memory of 1704	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	53
PID 1236 wrote to memory of 560	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	55
PID 1236 wrote to memory of 560	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	55
PID 1236 wrote to memory of 560	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	55
PID 1236 wrote to memory of 560	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	55
PID 1236 wrote to memory of 1856	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	57
PID 1236 wrote to memory of 1856	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	57
PID 1236 wrote to memory of 1856	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	57
PID 1236 wrote to memory of 1856	1236	3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe	57

C:\Users\Admin\AppData\Local\Temp\3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
"C:\Users\Admin\AppData\Local\Temp\3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe"
1⤵
- Enumerates connected drives
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.doc" /S /B /A
  2⤵
  PID:1612
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pdf" /S /B /A
  2⤵
  PID:564
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
  2⤵
  PID:240
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
  2⤵
  PID:620
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
  2⤵
  PID:1892
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
  2⤵
  PID:1960
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
  2⤵
  PID:1912
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
  2⤵
  PID:824
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
  2⤵
  PID:840
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
  2⤵
  PID:1720
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
  2⤵
  PID:1004
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
  2⤵
  PID:1520
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppa" /S /B /A
  2⤵
  PID:1684
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rar" /S /B /A
  2⤵
  PID:1704
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
  2⤵
  PID:560
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
  2⤵
  PID:1856
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
  2⤵
  PID:1328
- C:\Windows\SysWOW64\cmd.exe
  cmd /c start /min r.bat
  2⤵
  PID:1944
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K r.bat
    3⤵
    - Deletes itself
    PID:1948
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /min /c del "C:\Users\Admin\AppData\Local\Temp\r.bat"
      4⤵
      PID:1152
  - - C:\Windows\SysWOW64\taskkill.exe
      Taskkill /IM cmd.exe /F
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:1912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

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

Loading Replay Monitor...

Downloads

memory/1236-54-0x000000000304B000-0x00000000030C6000-memory.dmp

Filesize
492KB

Download
memory/1236-55-0x0000000075F71000-0x0000000075F73000-memory.dmp

Filesize
8KB

Download
memory/1236-57-0x0000000000300000-0x00000000003DD000-memory.dmp

Filesize
884KB

Download
memory/1236-58-0x0000000000400000-0x00000000004E2000-memory.dmp

Filesize
904KB

Download
memory/1236-56-0x000000000304B000-0x00000000030C6000-memory.dmp

Filesize
492KB

Download