outsteel | dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c

Analysis

max time kernel
142s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10-04-2024 14:31

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General

Target

dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
Size

708KB
MD5

e852e90f778f616f09900b4f1b05c03c
SHA1

91b6442fa2c070f07437a887fbb42805bf59b8cb
SHA256

dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c
SHA512

9be52c15f29c65e3b14601e997bfc4943709e162e13708a8464b230196cc822548b0219f2df5e5619ac303e1da94c66fbff5cdb1a02d50a8099f31f7862dfdd0
SSDEEP

12288:eqoP5A6FJP3lTedx7jsSeQOZBVJAoeXI5eN9zmTX6uaTcPap:eV5fbP3Jek5Pe4oN926uaYP

Score

10^/10

outsteel spyware stealer

Malware Config

Signatures

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

description	ioc	Process
File opened (read-only)	\??\t:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\v:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\z:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\g:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\n:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\o:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\s:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\w:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\x:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\e:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\l:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\p:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\r:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\m:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\u:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\y:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\h:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\i:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\j:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\k:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\a:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\b:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
File opened (read-only)	\??\q:	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe

AutoIT Executable 9 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/5028-2-0x0000000005B80000-0x0000000005C5D000-memory.dmp	autoit_exe
behavioral2/memory/5028-3-0x0000000000400000-0x0000000003E13000-memory.dmp	autoit_exe
behavioral2/memory/5028-6-0x0000000005B80000-0x0000000005C5D000-memory.dmp	autoit_exe
behavioral2/memory/5028-7-0x0000000000400000-0x0000000003E13000-memory.dmp	autoit_exe
behavioral2/memory/5028-9-0x0000000000400000-0x0000000003E13000-memory.dmp	autoit_exe
behavioral2/memory/5028-11-0x0000000000400000-0x0000000003E13000-memory.dmp	autoit_exe
behavioral2/memory/5028-13-0x0000000000400000-0x0000000003E13000-memory.dmp	autoit_exe
behavioral2/memory/5028-15-0x0000000000400000-0x0000000003E13000-memory.dmp	autoit_exe
behavioral2/memory/5028-17-0x0000000000400000-0x0000000003E13000-memory.dmp	autoit_exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 5028 wrote to memory of 1304	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	84
PID 5028 wrote to memory of 1304	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	84
PID 5028 wrote to memory of 1304	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	84
PID 5028 wrote to memory of 1732	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	86
PID 5028 wrote to memory of 1732	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	86
PID 5028 wrote to memory of 1732	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	86
PID 5028 wrote to memory of 3916	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	88
PID 5028 wrote to memory of 3916	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	88
PID 5028 wrote to memory of 3916	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	88
PID 5028 wrote to memory of 3768	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	90
PID 5028 wrote to memory of 3768	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	90
PID 5028 wrote to memory of 3768	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	90
PID 5028 wrote to memory of 116	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	92
PID 5028 wrote to memory of 116	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	92
PID 5028 wrote to memory of 116	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	92
PID 5028 wrote to memory of 3204	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	94
PID 5028 wrote to memory of 3204	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	94
PID 5028 wrote to memory of 3204	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	94
PID 5028 wrote to memory of 1708	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	96
PID 5028 wrote to memory of 1708	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	96
PID 5028 wrote to memory of 1708	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	96
PID 5028 wrote to memory of 1056	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	98
PID 5028 wrote to memory of 1056	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	98
PID 5028 wrote to memory of 1056	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	98
PID 5028 wrote to memory of 3560	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	100
PID 5028 wrote to memory of 3560	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	100
PID 5028 wrote to memory of 3560	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	100
PID 5028 wrote to memory of 2924	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	102
PID 5028 wrote to memory of 2924	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	102
PID 5028 wrote to memory of 2924	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	102
PID 5028 wrote to memory of 816	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	104
PID 5028 wrote to memory of 816	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	104
PID 5028 wrote to memory of 816	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	104
PID 5028 wrote to memory of 1728	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	106
PID 5028 wrote to memory of 1728	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	106
PID 5028 wrote to memory of 1728	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	106
PID 5028 wrote to memory of 4100	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	108
PID 5028 wrote to memory of 4100	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	108
PID 5028 wrote to memory of 4100	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	108
PID 5028 wrote to memory of 4988	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	110
PID 5028 wrote to memory of 4988	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	110
PID 5028 wrote to memory of 4988	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	110
PID 5028 wrote to memory of 1908	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	112
PID 5028 wrote to memory of 1908	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	112
PID 5028 wrote to memory of 1908	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	112
PID 5028 wrote to memory of 992	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	114
PID 5028 wrote to memory of 992	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	114
PID 5028 wrote to memory of 992	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	114
PID 5028 wrote to memory of 2236	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	116
PID 5028 wrote to memory of 2236	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	116
PID 5028 wrote to memory of 2236	5028	dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe	116

C:\Users\Admin\AppData\Local\Temp\dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe
"C:\Users\Admin\AppData\Local\Temp\dfc24fa837b6cd3210e7ea0802db3dcf7bb1f85bff2c1b4bda4c3c599821bf8c.exe"
1⤵
- Enumerates connected drives
- Suspicious use of WriteProcessMemory
PID:5028
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.doc" /S /B /A
  2⤵
  PID:1304
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pdf" /S /B /A
  2⤵
  PID:1732
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
  2⤵
  PID:3916
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
  2⤵
  PID:3768
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
  2⤵
  PID:116
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
  2⤵
  PID:3204
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
  2⤵
  PID:1708
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
  2⤵
  PID:1056
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
  2⤵
  PID:3560
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
  2⤵
  PID:2924
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
  2⤵
  PID:816
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
  2⤵
  PID:1728
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppa" /S /B /A
  2⤵
  PID:4100
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rar" /S /B /A
  2⤵
  PID:4988
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
  2⤵
  PID:1908
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
  2⤵
  PID:992
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
  2⤵
  PID:2236

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

memory/5028-1-0x0000000003ED0000-0x0000000003FD0000-memory.dmp

Filesize
1024KB

Download
memory/5028-2-0x0000000005B80000-0x0000000005C5D000-memory.dmp

Filesize
884KB

Download
memory/5028-3-0x0000000000400000-0x0000000003E13000-memory.dmp

Filesize
58.1MB

Download
memory/5028-4-0x0000000003ED0000-0x0000000003FD0000-memory.dmp

Filesize
1024KB

Download
memory/5028-6-0x0000000005B80000-0x0000000005C5D000-memory.dmp

Filesize
884KB

Download
memory/5028-7-0x0000000000400000-0x0000000003E13000-memory.dmp

Filesize
58.1MB

Download
memory/5028-9-0x0000000000400000-0x0000000003E13000-memory.dmp

Filesize
58.1MB

Download
memory/5028-11-0x0000000000400000-0x0000000003E13000-memory.dmp

Filesize
58.1MB

Download
memory/5028-13-0x0000000000400000-0x0000000003E13000-memory.dmp

Filesize
58.1MB

Download
memory/5028-15-0x0000000000400000-0x0000000003E13000-memory.dmp

Filesize
58.1MB

Download
memory/5028-17-0x0000000000400000-0x0000000003E13000-memory.dmp

Filesize
58.1MB

Download