stealc | 96aee723f4e99b71d216411e44fa8f10a9ce7a01df947cc0c41aa8856076fa1e

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
16/09/2023, 02:35

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General

Target
SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe
Size 342KB
Sample230916-c21mnabb87
SHA256 96aee723f4e99b71d216411e44fa8f10a9ce7a01df947cc0c41aa8856076fa1e
MD5 382c67e9b4bedb4007e0445192e3ee71
SHA1 549e6d43f325efca5b5e6d9c77d1b9f571a4fadb
SHA512 ad12b8b97f470ca422096f097ae081ab07ddfb46421a38c38efc6beaa9df5cd1a578a85c2d5d5f77079e427930fdc1c3b07ba9454dd47a9263c95f49a789b274
SSDEEP 6144:gYbvk62Lsxd55lHaLoFGVs8aJAyizYU7NK/amcIk:gw/2OKTS8NyQ+T
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

http://171.22.28.221

Attributes

url_path
/5c06c05b7b34e8e6.php

rc4.plain

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation	SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe
Key value queried	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation	2628959492.exe

Executes dropped EXE 1 IoCs

pid	Process
1472	2628959492.exe

Loads dropped DLL 2 IoCs

pid	Process
1472	2628959492.exe
1472	2628959492.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
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2640	2916	WerFault.exe	82
2100	1472	WerFault.exe	86

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2628959492.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2628959492.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1640	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3660	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1472	2628959492.exe
1472	2628959492.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3660	taskkill.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 3720	2916	SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe	84
PID 2916 wrote to memory of 3720	2916	SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe	84
PID 2916 wrote to memory of 3720	2916	SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe	84
PID 3720 wrote to memory of 1472	3720	cmd.exe	86
PID 3720 wrote to memory of 1472	3720	cmd.exe	86
PID 3720 wrote to memory of 1472	3720	cmd.exe	86
PID 2916 wrote to memory of 3828	2916	SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe	89
PID 2916 wrote to memory of 3828	2916	SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe	89
PID 2916 wrote to memory of 3828	2916	SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe	89
PID 3828 wrote to memory of 3660	3828	cmd.exe	92
PID 3828 wrote to memory of 3660	3828	cmd.exe	92
PID 3828 wrote to memory of 3660	3828	cmd.exe	92
PID 1472 wrote to memory of 4252	1472	2628959492.exe	95
PID 1472 wrote to memory of 4252	1472	2628959492.exe	95
PID 1472 wrote to memory of 4252	1472	2628959492.exe	95
PID 4252 wrote to memory of 1640	4252	cmd.exe	98
PID 4252 wrote to memory of 1640	4252	cmd.exe	98
PID 4252 wrote to memory of 1640	4252	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\2628959492.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3720
- - C:\Users\Admin\AppData\Local\Temp\2628959492.exe
    "C:\Users\Admin\AppData\Local\Temp\2628959492.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1472
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\2628959492.exe" & del "C:\ProgramData\*.dll"" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4252
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        Delays execution with timeout.exe
        
        PID:1640
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1472 -s 2468
      4⤵
      Program crash
      PID:2100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3828
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "SecuriteInfo.com.Win32.BotX-gen.2760.31706.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3660
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 1920
  2⤵
  - Program crash
  PID:2640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2916 -ip 2916
1⤵
PID:1148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1472 -ip 1472
1⤵
PID:4872

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

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

Are.docx

Path C:\ProgramData\Are.docx
Size 11KB
SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
MD5 a33e5b189842c5867f46566bdbf7a095
SHA1 e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA512 f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
SSDEEP 192:CtNCEE33S7Ok0CMSYbcBVk6tqM16iPBkeawLWdxd7o3Lp:aNwC78uYbcBv6akwLWdxdE3Lp
MD5 SHA1 SHA512 SSDEEP

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mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

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mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 2.0MB
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
MD5 SHA1 SHA512 SSDEEP

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2628959492.exe

Path C:\Users\Admin\AppData\Local\Temp\2628959492.exe
Size 267KB
SHA256 7ec096310d5bb659d723caf4818b036b65d334bcdf791f6ce0c4e42c8e3ecc41
MD5 aa7b13afed215e7df3ff2b10b5e47099
SHA1 815f3eded0b940f58291c5cffb0454b48ed80ab5
SHA512 0ca4c1f9e3011b59cba42a12e141417003472190274ead76f8b7324b67c31eba443d01eedb1282a3155d0c0a4a79985445e6ee5bd35d9c0d378392330f515b2f
SSDEEP 3072:lXYs7gYUv7jxteLZmpfwIzVb/4cRGsDiHcV4vonyubNJ4:RYsIv7jxteLZeZM04vEy24
MD5 SHA1 SHA512 SSDEEP

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2628959492.exe

Path C:\Users\Admin\AppData\Local\Temp\2628959492.exe
Size 267KB
SHA256 7ec096310d5bb659d723caf4818b036b65d334bcdf791f6ce0c4e42c8e3ecc41
MD5 aa7b13afed215e7df3ff2b10b5e47099
SHA1 815f3eded0b940f58291c5cffb0454b48ed80ab5
SHA512 0ca4c1f9e3011b59cba42a12e141417003472190274ead76f8b7324b67c31eba443d01eedb1282a3155d0c0a4a79985445e6ee5bd35d9c0d378392330f515b2f
SSDEEP 3072:lXYs7gYUv7jxteLZmpfwIzVb/4cRGsDiHcV4vonyubNJ4:RYsIv7jxteLZeZM04vEy24
MD5 SHA1 SHA512 SSDEEP

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memory/1472-16-0x0000000002320000-0x000000000233B000-memory.dmp

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memory/1472-17-0x0000000000400000-0x0000000000711000-memory.dmp

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memory/1472-18-0x0000000061E00000-0x0000000061EF3000-memory.dmp

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memory/1472-15-0x0000000000830000-0x0000000000930000-memory.dmp

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memory/1472-100-0x0000000000830000-0x0000000000930000-memory.dmp

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memory/1472-101-0x0000000000400000-0x0000000000711000-memory.dmp

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memory/2916-56-0x0000000000980000-0x0000000000A80000-memory.dmp

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memory/2916-66-0x0000000000400000-0x0000000000724000-memory.dmp

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memory/2916-67-0x0000000002490000-0x00000000024CE000-memory.dmp

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memory/2916-1-0x0000000000980000-0x0000000000A80000-memory.dmp

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memory/2916-3-0x0000000000400000-0x0000000000724000-memory.dmp

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memory/2916-2-0x0000000002490000-0x00000000024CE000-memory.dmp

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