stealc | 359ac7b1e8531ed6ce9f9a8e8cd8932f7a4fca0fc149008d702e395208c98cec

Analysis

max time kernel
37s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 01:01

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General

Target

Setup.exe
Size

2.7MB
MD5

870feaab725b148208dd12ffabe33f9d
SHA1

9f3651ad5725848c880c24f8e749205a7e1e78c1
SHA256

bbf7154f14d736f0c8491fb9fb44d2f179cdb02d34ab54c04466fa0702ea7d55
SHA512

5bea301f85e6a55fd5730793b960442bc4dab92d0bf47e4e55c5490448a4a22ed6d0feb1dbe9d56d6b6ff8d06f163381807f83f467621f527bc6521857fc8e1a
SSDEEP

49152:C11fbWXfBeBqTww8Gkfoa0yeL8zj9JLF+lP/MatsfHVnZbhG3EVsMI62Pseaj/1n:QbWkuwwjkULhlPUatsfBxhsE

Score

10^/10

stealc anna2 persistence privilege_escalation stealer

Malware Config

Extracted

Family

stealc

Botnet

ANNA2

https://safefiledownloadsoft.com

Attributes

url_path
/725c63b56c99aa26.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Loads dropped DLL 1 IoCs

Processes:

TraceFmt.exe

pid process

4692 TraceFmt.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Setup.exe

description pid process target process

PID 3520 set thread context of 2668 3520 Setup.exe netsh.exe

pid	process
4692	TraceFmt.exe

description	pid	process	target process
PID 3520 set thread context of 2668	3520	Setup.exe	netsh.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

Processes:

netsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4480 4692 WerFault.exe TraceFmt.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Setup.exenetsh.exe

pid process

3520 Setup.exe
3520 Setup.exe
2668 netsh.exe
2668 netsh.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

Setup.exenetsh.exe

pid process

3520 Setup.exe
2668 netsh.exe

pid	pid_target	process	target process
4480	4692	WerFault.exe	TraceFmt.exe

pid	process
3520	Setup.exe
3520	Setup.exe
2668	netsh.exe
2668	netsh.exe

pid	process
3520	Setup.exe
2668	netsh.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Setup.exenetsh.exe

description	pid	process	target process
PID 3520 wrote to memory of 2668	3520	Setup.exe	netsh.exe
PID 3520 wrote to memory of 2668	3520	Setup.exe	netsh.exe
PID 3520 wrote to memory of 2668	3520	Setup.exe	netsh.exe
PID 3520 wrote to memory of 2668	3520	Setup.exe	netsh.exe
PID 2668 wrote to memory of 4692	2668	netsh.exe	TraceFmt.exe
PID 2668 wrote to memory of 4692	2668	netsh.exe	TraceFmt.exe
PID 2668 wrote to memory of 4692	2668	netsh.exe	TraceFmt.exe
PID 2668 wrote to memory of 4692	2668	netsh.exe	TraceFmt.exe

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3520

C:\Windows\SysWOW64\netsh.exe
C:\Windows\SysWOW64\netsh.exe
2⤵
- Event Triggered Execution: Netsh Helper DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2668

C:\Users\Admin\AppData\Local\Temp\TraceFmt.exe
C:\Users\Admin\AppData\Local\Temp\TraceFmt.exe
3⤵
- Loads dropped DLL
PID:4692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 2500
4⤵
- Program crash
PID:4480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4692 -ip 4692
1⤵
PID:4752

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll
Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll
Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\Users\Admin\AppData\Local\Temp\TraceFmt.exe
Filesize
433KB

MD5
fea067901f48a5f1faf7ca3b373f1a8f

SHA1
e8abe0deb87de9fe3bb3a611234584e9a9b17cce

SHA256
bf24b2f3e3a3c60ed116791b99e5421a4de34ac9c6e2201d34ab487e448ce152

SHA512
07c83a2d3d5dd475bc8aa48eba9b03e8fb742dbbd7bd623ed05dc1086efed7dfd1c1b8f037ee2e81efba1de58ea3243d7c84ac8b484e808cd28765f9c7517023

Download Submit
C:\Users\Admin\AppData\Local\Temp\a1f40a73
Filesize
1.3MB

MD5
ee42b4e474deb2fad749a48b64e41f3f

SHA1
0d33f458d58d97f09a134e8da63823fbaa54e206

SHA256
0bd162d3cdc68c9bfa482a437807f410243410d7877110d70266cb102050c2aa

SHA512
bb135d599d4e04a7cd3bb9b7c26cd7bfb2ab3b1934d1c401f11723ecd5ba50efe128f63a3bd795b479514564538c7c94387a91dffbb09d16358aaf081d0b8c08

Download Submit
memory/2668-16-0x0000000074541000-0x000000007454F000-memory.dmp

Filesize
56KB

Download
memory/2668-11-0x00007FFFBC790000-0x00007FFFBC985000-memory.dmp

Filesize
2.0MB

Download
memory/2668-14-0x0000000074541000-0x000000007454F000-memory.dmp

Filesize
56KB

Download
memory/2668-13-0x000000007454E000-0x0000000074550000-memory.dmp

Filesize
8KB

Download
memory/2668-104-0x000000007454E000-0x0000000074550000-memory.dmp

Filesize
8KB

Download
memory/2668-9-0x0000000074541000-0x000000007454F000-memory.dmp

Filesize
56KB

Download
memory/3520-6-0x0000000074540000-0x00000000746BB000-memory.dmp

Filesize
1.5MB

Download
memory/3520-7-0x0000000074540000-0x00000000746BB000-memory.dmp

Filesize
1.5MB

Download
memory/3520-0-0x0000000074540000-0x00000000746BB000-memory.dmp

Filesize
1.5MB

Download
memory/3520-5-0x0000000074552000-0x0000000074554000-memory.dmp

Filesize
8KB

Download
memory/3520-1-0x00007FFFBC790000-0x00007FFFBC985000-memory.dmp

Filesize
2.0MB

Download
memory/4692-20-0x00007FFFBC790000-0x00007FFFBC985000-memory.dmp

Filesize
2.0MB

Download
memory/4692-23-0x0000000000095000-0x000000000009D000-memory.dmp

Filesize
32KB

Download
memory/4692-31-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4692-24-0x0000000000050000-0x000000000010A000-memory.dmp

Filesize
744KB

Download
memory/4692-21-0x0000000000480000-0x00000000006BE000-memory.dmp

Filesize
2.2MB

Download
memory/4692-103-0x0000000000480000-0x00000000006BE000-memory.dmp

Filesize
2.2MB

Download
memory/4692-17-0x0000000000480000-0x00000000006BE000-memory.dmp

Filesize
2.2MB

Download