stealc | ed60d9c899ba23a867933062048cce9a9b5ab81379fd2adde648288a74662404

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
20/09/2023, 07:15

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General

Target

3e12eef5b30432fcaeb036fcdbdf2157.exe
Size

206KB
MD5

3e12eef5b30432fcaeb036fcdbdf2157
SHA1

746a2b497001ece110cc10d1b9bea4db478beddc
SHA256

ed60d9c899ba23a867933062048cce9a9b5ab81379fd2adde648288a74662404
SHA512

67fbeb3308803bd4217db4006dd0aef90bdeab1f924689132f61df3289e69ef3780139932c42a039eb2656a1c56fffbc509164177b2a1bbac77a84f5af8a41aa
SSDEEP

6144:hkKYLDY81hHNIxTGyKrvWI3VzIvU5tig8YT:hkbPY81JNIl6fv5uI

Score

10^/10

stealc discovery stealer

Malware Config

Extracted

Family

stealc

http://christopherant�nio.top

Attributes

url_path
/e9c345fc99a4e67e.php

rc4.plain

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc

Deletes itself 1 IoCs

pid	Process
2608	cmd.exe

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	3e12eef5b30432fcaeb036fcdbdf2157.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3e12eef5b30432fcaeb036fcdbdf2157.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2840	timeout.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1968	3e12eef5b30432fcaeb036fcdbdf2157.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2608	1968	3e12eef5b30432fcaeb036fcdbdf2157.exe	28
PID 1968 wrote to memory of 2608	1968	3e12eef5b30432fcaeb036fcdbdf2157.exe	28
PID 1968 wrote to memory of 2608	1968	3e12eef5b30432fcaeb036fcdbdf2157.exe	28
PID 1968 wrote to memory of 2608	1968	3e12eef5b30432fcaeb036fcdbdf2157.exe	28
PID 2608 wrote to memory of 2840	2608	cmd.exe	30
PID 2608 wrote to memory of 2840	2608	cmd.exe	30
PID 2608 wrote to memory of 2840	2608	cmd.exe	30
PID 2608 wrote to memory of 2840	2608	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\3e12eef5b30432fcaeb036fcdbdf2157.exe
"C:\Users\Admin\AppData\Local\Temp\3e12eef5b30432fcaeb036fcdbdf2157.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3e12eef5b30432fcaeb036fcdbdf2157.exe" & del "C:\ProgramData\*.dll"" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2608
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 5
    3⤵
    - Delays execution with timeout.exe
    PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1968-0-0x0000000000220000-0x0000000000235000-memory.dmp

Filesize
84KB

Download
memory/1968-1-0x0000000000260000-0x000000000027B000-memory.dmp

Filesize
108KB

Download
memory/1968-2-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/1968-3-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/1968-4-0x0000000000260000-0x000000000027B000-memory.dmp

Filesize
108KB

Download
memory/1968-5-0x0000000000220000-0x0000000000235000-memory.dmp

Filesize
84KB

Download