stealc | 3bd221e945c0da67960f21c8bec0d678ff84f10dcf3b5866ed57a1ced810cbd9

Analysis

max time kernel
35s
max time network
34s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
09/07/2023, 10:59

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General

Target

10e82b6ad59c2ab5f97f96e60.exe
Size

2.2MB
MD5

10e82b6ad59c2ab5f97f96e6060bb12e
SHA1

9491bd29357513c63d703ac9d99dcf25251d7cd7
SHA256

3bd221e945c0da67960f21c8bec0d678ff84f10dcf3b5866ed57a1ced810cbd9
SHA512

382fcf2a97391d739d1543ded334f48a2e1f32471649a1837aa7a6902b6126fbd40178371681bbfdf7d1f6b46af10ec91f96cb6a9ed598e87617dd9574a64d8f
SSDEEP

49152:vBuZrEUiWqJZU2zF35Me89k6YQoWH6hBJLJZ2iZ3vxm3c7ldhA:ZkLiWqJZU4F3XEYVbXvm3chA

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

http://65.21.118.113/d04727a8ed5e33a1.php

Signatures

Detects Stealc stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/1476-88-0x0000000002040000-0x0000000002269000-memory.dmp	family_stealc
behavioral1/memory/1476-87-0x0000000002040000-0x0000000002269000-memory.dmp	family_stealc
behavioral1/memory/1476-89-0x0000000002040000-0x0000000002269000-memory.dmp	family_stealc
behavioral1/memory/1476-151-0x0000000002040000-0x0000000002269000-memory.dmp	family_stealc

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

Executes dropped EXE 2 IoCs

pid	Process
1212	10e82b6ad59c2ab5f97f96e60.tmp
1476	Output2.exe

Loads dropped DLL 5 IoCs

pid	Process
1696	10e82b6ad59c2ab5f97f96e60.exe
1212	10e82b6ad59c2ab5f97f96e60.tmp
1212	10e82b6ad59c2ab5f97f96e60.tmp
1476	Output2.exe
1476	Output2.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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

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	Output2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Output2.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2508	timeout.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1212	10e82b6ad59c2ab5f97f96e60.tmp
1212	10e82b6ad59c2ab5f97f96e60.tmp
1476	Output2.exe
1476	Output2.exe
1476	Output2.exe
1476	Output2.exe
1476	Output2.exe
1476	Output2.exe
1476	Output2.exe
1476	Output2.exe
1476	Output2.exe
1476	Output2.exe
1476	Output2.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1212	10e82b6ad59c2ab5f97f96e60.tmp

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 1212	1696	10e82b6ad59c2ab5f97f96e60.exe	28
PID 1696 wrote to memory of 1212	1696	10e82b6ad59c2ab5f97f96e60.exe	28
PID 1696 wrote to memory of 1212	1696	10e82b6ad59c2ab5f97f96e60.exe	28
PID 1696 wrote to memory of 1212	1696	10e82b6ad59c2ab5f97f96e60.exe	28
PID 1696 wrote to memory of 1212	1696	10e82b6ad59c2ab5f97f96e60.exe	28
PID 1696 wrote to memory of 1212	1696	10e82b6ad59c2ab5f97f96e60.exe	28
PID 1696 wrote to memory of 1212	1696	10e82b6ad59c2ab5f97f96e60.exe	28
PID 1212 wrote to memory of 1300	1212	10e82b6ad59c2ab5f97f96e60.tmp	29
PID 1212 wrote to memory of 1300	1212	10e82b6ad59c2ab5f97f96e60.tmp	29
PID 1212 wrote to memory of 1300	1212	10e82b6ad59c2ab5f97f96e60.tmp	29
PID 1212 wrote to memory of 1300	1212	10e82b6ad59c2ab5f97f96e60.tmp	29
PID 1212 wrote to memory of 1476	1212	10e82b6ad59c2ab5f97f96e60.tmp	30
PID 1212 wrote to memory of 1476	1212	10e82b6ad59c2ab5f97f96e60.tmp	30
PID 1212 wrote to memory of 1476	1212	10e82b6ad59c2ab5f97f96e60.tmp	30
PID 1212 wrote to memory of 1476	1212	10e82b6ad59c2ab5f97f96e60.tmp	30
PID 1476 wrote to memory of 2728	1476	Output2.exe	32
PID 1476 wrote to memory of 2728	1476	Output2.exe	32
PID 1476 wrote to memory of 2728	1476	Output2.exe	32
PID 1476 wrote to memory of 2728	1476	Output2.exe	32
PID 2728 wrote to memory of 2508	2728	cmd.exe	34
PID 2728 wrote to memory of 2508	2728	cmd.exe	34
PID 2728 wrote to memory of 2508	2728	cmd.exe	34
PID 2728 wrote to memory of 2508	2728	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\10e82b6ad59c2ab5f97f96e60.exe
"C:\Users\Admin\AppData\Local\Temp\10e82b6ad59c2ab5f97f96e60.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Users\Admin\AppData\Local\Temp\is-9MB3M.tmp\10e82b6ad59c2ab5f97f96e60.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-9MB3M.tmp\10e82b6ad59c2ab5f97f96e60.tmp" /SL5="$90124,1396243,844288,C:\Users\Admin\AppData\Local\Temp\10e82b6ad59c2ab5f97f96e60.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1212
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\system\Noda.vbs"
    3⤵
    PID:1300
- - C:\Users\Admin\AppData\Roaming\system\Output2.exe
    "C:\Users\Admin\AppData\Roaming\system\Output2.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1476
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Roaming\system\Output2.exe" & del "C:\ProgramData\*.dll"" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2728
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        Delays execution with timeout.exe
        
        PID:2508

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

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

C:\Users\Admin\AppData\Local\Temp\is-9MB3M.tmp\10e82b6ad59c2ab5f97f96e60.tmp

Filesize
3.0MB

MD5
b1207c842ab6b5390891938206817e0c

SHA1
547bd5dbd6f53c2ac4c8bf03429f94c862fdf44d

SHA256
99d0b2ad783e314ffdcc076d82d94a8089908f75269213e0843431493f683c2c

SHA512
a15db64395ea2750714969c0f0b226c3bf1a469335ca42180d8129b8965bd0991e63fd84d26d0d2ce60078dd04b521896ef3bc9471cadc268a0a88938cd1641d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-9MB3M.tmp\10e82b6ad59c2ab5f97f96e60.tmp

Filesize
3.0MB

MD5
b1207c842ab6b5390891938206817e0c

SHA1
547bd5dbd6f53c2ac4c8bf03429f94c862fdf44d

SHA256
99d0b2ad783e314ffdcc076d82d94a8089908f75269213e0843431493f683c2c

SHA512
a15db64395ea2750714969c0f0b226c3bf1a469335ca42180d8129b8965bd0991e63fd84d26d0d2ce60078dd04b521896ef3bc9471cadc268a0a88938cd1641d

Download Submit
C:\Users\Admin\AppData\Roaming\system\Noda.vbs

Filesize
213B

MD5
6d80bce38c8b0406bf1a519ffd612409

SHA1
905f273dd6dafa1464320ca573fde71af63ea111

SHA256
15c12c22b9745264f4c153b77ff16842684d1d2f982995acf77911e62d45d71c

SHA512
f6ea41b1105d1cbcebd26e681062b21b8a2445879a0cb0b6736b59625a1efe9b4bf75ee1eb94373a313753edc08805bfd05de1adaa8a986e867b90f06ab4ad6c

Download Submit
C:\Users\Admin\AppData\Roaming\system\Output2.exe

Filesize
1.2MB

MD5
66bc6cee7921f7f9990460ff646ac8ea

SHA1
de7c05abb8c403dc5744eb54038f3ffb61808366

SHA256
e970d831fb13bf2ba24bf0e1767457f757ed29e1da89ec13d0a759e2f82ec0c7

SHA512
a4f4049e31629e0347e1f436ebb8789cf0aa64374aafc451166197ae8fa6ca2effc5a311cb2311e2b32bf45e672d3ca7bb103b10000466a0b31109e457f4d70e

Download Submit
C:\Users\Admin\AppData\Roaming\system\Output2.exe

Filesize
1.2MB

MD5
66bc6cee7921f7f9990460ff646ac8ea

SHA1
de7c05abb8c403dc5744eb54038f3ffb61808366

SHA256
e970d831fb13bf2ba24bf0e1767457f757ed29e1da89ec13d0a759e2f82ec0c7

SHA512
a4f4049e31629e0347e1f436ebb8789cf0aa64374aafc451166197ae8fa6ca2effc5a311cb2311e2b32bf45e672d3ca7bb103b10000466a0b31109e457f4d70e

Download Submit
C:\Users\Admin\AppData\Roaming\system\Output2.exe

Filesize
1.2MB

MD5
66bc6cee7921f7f9990460ff646ac8ea

SHA1
de7c05abb8c403dc5744eb54038f3ffb61808366

SHA256
e970d831fb13bf2ba24bf0e1767457f757ed29e1da89ec13d0a759e2f82ec0c7

SHA512
a4f4049e31629e0347e1f436ebb8789cf0aa64374aafc451166197ae8fa6ca2effc5a311cb2311e2b32bf45e672d3ca7bb103b10000466a0b31109e457f4d70e

Download Submit
\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
\Users\Admin\AppData\Local\Temp\is-9MB3M.tmp\10e82b6ad59c2ab5f97f96e60.tmp

Filesize
3.0MB

MD5
b1207c842ab6b5390891938206817e0c

SHA1
547bd5dbd6f53c2ac4c8bf03429f94c862fdf44d

SHA256
99d0b2ad783e314ffdcc076d82d94a8089908f75269213e0843431493f683c2c

SHA512
a15db64395ea2750714969c0f0b226c3bf1a469335ca42180d8129b8965bd0991e63fd84d26d0d2ce60078dd04b521896ef3bc9471cadc268a0a88938cd1641d

Download Submit
\Users\Admin\AppData\Roaming\system\Output2.exe

Filesize
1.2MB

MD5
66bc6cee7921f7f9990460ff646ac8ea

SHA1
de7c05abb8c403dc5744eb54038f3ffb61808366

SHA256
e970d831fb13bf2ba24bf0e1767457f757ed29e1da89ec13d0a759e2f82ec0c7

SHA512
a4f4049e31629e0347e1f436ebb8789cf0aa64374aafc451166197ae8fa6ca2effc5a311cb2311e2b32bf45e672d3ca7bb103b10000466a0b31109e457f4d70e

Download Submit
\Users\Admin\AppData\Roaming\system\Output2.exe

Filesize
1.2MB

MD5
66bc6cee7921f7f9990460ff646ac8ea

SHA1
de7c05abb8c403dc5744eb54038f3ffb61808366

SHA256
e970d831fb13bf2ba24bf0e1767457f757ed29e1da89ec13d0a759e2f82ec0c7

SHA512
a4f4049e31629e0347e1f436ebb8789cf0aa64374aafc451166197ae8fa6ca2effc5a311cb2311e2b32bf45e672d3ca7bb103b10000466a0b31109e457f4d70e

Download Submit
memory/1212-83-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/1212-61-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1476-85-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/1476-88-0x0000000002040000-0x0000000002269000-memory.dmp

Filesize
2.2MB

Download
memory/1476-87-0x0000000002040000-0x0000000002269000-memory.dmp

Filesize
2.2MB

Download
memory/1476-89-0x0000000002040000-0x0000000002269000-memory.dmp

Filesize
2.2MB

Download
memory/1476-90-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1476-148-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/1476-150-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/1476-151-0x0000000002040000-0x0000000002269000-memory.dmp

Filesize
2.2MB

Download
memory/1696-84-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/1696-54-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download