outsteel | 37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d

Analysis

max time kernel
4294181s
max time network
124s
platform
windows7_x64
resource
win7-20220223-en
submitted
28-02-2022 03:13

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General

Target

37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
Size

878KB
MD5

83cd7984cee0a4fde468216521d9d3fc
SHA1

e8fa43110dd36085d79199788d2ea5c57236136e
SHA256

37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d
SHA512

5df4a3afeeb18f38900c224622b32c5f729f6678bb4f24a75b0994372360a68a3b838375d67c89d843c386091c595dfe6b42dcd7d763d8381811eade68101245

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/0x0004000000004ed7-55.dat	outsteel_batch_script

Deletes itself 1 IoCs

pid	Process
1872	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)	\??\u:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\b:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\k:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\m:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\s:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\t:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\o:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\q:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\w:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\g:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\h:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\i:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\j:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\n:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\l:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\v:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\z:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\x:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\y:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\a:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\e:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\f:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\p:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
File opened (read-only)	\??\r:	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1116	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1116	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2000	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	27
PID 2016 wrote to memory of 2000	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	27
PID 2016 wrote to memory of 2000	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	27
PID 2016 wrote to memory of 2000	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	27
PID 2016 wrote to memory of 1864	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	29
PID 2016 wrote to memory of 1864	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	29
PID 2016 wrote to memory of 1864	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	29
PID 2016 wrote to memory of 1864	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	29
PID 2016 wrote to memory of 684	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	31
PID 2016 wrote to memory of 684	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	31
PID 2016 wrote to memory of 684	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	31
PID 2016 wrote to memory of 684	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	31
PID 2016 wrote to memory of 1512	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	33
PID 2016 wrote to memory of 1512	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	33
PID 2016 wrote to memory of 1512	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	33
PID 2016 wrote to memory of 1512	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	33
PID 2016 wrote to memory of 1552	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	35
PID 2016 wrote to memory of 1552	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	35
PID 2016 wrote to memory of 1552	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	35
PID 2016 wrote to memory of 1552	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	35
PID 2016 wrote to memory of 292	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	37
PID 2016 wrote to memory of 292	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	37
PID 2016 wrote to memory of 292	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	37
PID 2016 wrote to memory of 292	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	37
PID 2016 wrote to memory of 1548	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	39
PID 2016 wrote to memory of 1548	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	39
PID 2016 wrote to memory of 1548	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	39
PID 2016 wrote to memory of 1548	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	39
PID 2016 wrote to memory of 1732	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	41
PID 2016 wrote to memory of 1732	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	41
PID 2016 wrote to memory of 1732	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	41
PID 2016 wrote to memory of 1732	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	41
PID 2016 wrote to memory of 1696	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	43
PID 2016 wrote to memory of 1696	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	43
PID 2016 wrote to memory of 1696	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	43
PID 2016 wrote to memory of 1696	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	43
PID 2016 wrote to memory of 1688	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	45
PID 2016 wrote to memory of 1688	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	45
PID 2016 wrote to memory of 1688	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	45
PID 2016 wrote to memory of 1688	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	45
PID 2016 wrote to memory of 1072	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	47
PID 2016 wrote to memory of 1072	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	47
PID 2016 wrote to memory of 1072	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	47
PID 2016 wrote to memory of 1072	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	47
PID 2016 wrote to memory of 1148	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	49
PID 2016 wrote to memory of 1148	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	49
PID 2016 wrote to memory of 1148	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	49
PID 2016 wrote to memory of 1148	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	49
PID 2016 wrote to memory of 524	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	51
PID 2016 wrote to memory of 524	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	51
PID 2016 wrote to memory of 524	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	51
PID 2016 wrote to memory of 524	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	51
PID 2016 wrote to memory of 1064	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	53
PID 2016 wrote to memory of 1064	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	53
PID 2016 wrote to memory of 1064	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	53
PID 2016 wrote to memory of 1064	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	53
PID 2016 wrote to memory of 1764	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	55
PID 2016 wrote to memory of 1764	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	55
PID 2016 wrote to memory of 1764	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	55
PID 2016 wrote to memory of 1764	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	55
PID 2016 wrote to memory of 1504	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	57
PID 2016 wrote to memory of 1504	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	57
PID 2016 wrote to memory of 1504	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	57
PID 2016 wrote to memory of 1504	2016	37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe	57

C:\Users\Admin\AppData\Local\Temp\37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe
"C:\Users\Admin\AppData\Local\Temp\37be3d8810959e63d5b6535164e51f16ccea9ca11d7dab7c1dfaa335affe6e3d.exe"
1⤵
- Enumerates connected drives
- Suspicious use of WriteProcessMemory
PID:2016
- 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:1864
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
  2⤵
  PID:684
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
  2⤵
  PID:1512
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
  2⤵
  PID:1552
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
  2⤵
  PID:292
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
  2⤵
  PID:1548
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
  2⤵
  PID:1732
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
  2⤵
  PID:1696
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
  2⤵
  PID:1688
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
  2⤵
  PID:1072
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
  2⤵
  PID:1148
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppa" /S /B /A
  2⤵
  PID:524
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rar" /S /B /A
  2⤵
  PID:1064
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
  2⤵
  PID:1764
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
  2⤵
  PID:1504
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
  2⤵
  PID:1556
- C:\Windows\SysWOW64\cmd.exe
  cmd /c start /min r.bat
  2⤵
  PID:828
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K r.bat
    3⤵
    - Deletes itself
    PID:1872
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /min /c del "C:\Users\Admin\AppData\Local\Temp\r.bat"
      4⤵
      PID:1216
  - - C:\Windows\SysWOW64\taskkill.exe
      Taskkill /IM cmd.exe /F
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:1116

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/2016-54-0x0000000075751000-0x0000000075753000-memory.dmp

Filesize
8KB

Download