matiex | e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961

Analysis

max time kernel
152s
max time network
48s
platform
windows7_x64
resource
win7-20220414-en
submitted
08-05-2022 06:14

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General

Target

e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe
Size

546KB
MD5

0d8d14b3e6739610579cbcec8bcad92e
SHA1

5c5c5c3bc5b9277cd9a0483b7cd8ec6f85355b4c
SHA256

e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961
SHA512

dcc70688bb2d3cf8feeaf6492955ebb3789dd954da6b1a4c688750032f64e1cf114f4f3497fab1bc330587fa3746c30c9250a01400242d8514eeb10076a8db24

Score

10^/10

matiex keylogger persistence stealer

Malware Config

Extracted

Family

matiex

https://api.telegram.org/bot1337162934:AAEz0dj2pspqp1QusSdUa-ANUccTUIA_t-s/sendMessage?chat_id=1302007902

Signatures

Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
stealer keylogger matiex

Matiex Main Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2012-76-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2012-77-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2012-78-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2012-79-0x000000000046DB4E-mapping.dmp	family_matiex
behavioral1/memory/2012-82-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2012-84-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Executes dropped EXE 2 IoCs

Processes:

psr.exeInstallUtil.exe

pid process

832 psr.exe
2012 InstallUtil.exe

pid	process
832	psr.exe
2012	InstallUtil.exe

Loads dropped DLL 4 IoCs

Processes:

e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exepsr.exe

pid	process
1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe
1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe
832	psr.exe
832	psr.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\fgc = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\psr.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

psr.exe

description pid process target process

PID 832 set thread context of 2012 832 psr.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 832 set thread context of 2012	832	psr.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exepsr.exe

pid	process
1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe
1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe
832	psr.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exepsr.exe

description	pid	process
Token: SeDebugPrivilege	1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe
Token: SeDebugPrivilege	832	psr.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.execmd.exepsr.exe

description	pid	process	target process
PID 1960 wrote to memory of 856	1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe	cmd.exe
PID 1960 wrote to memory of 856	1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe	cmd.exe
PID 1960 wrote to memory of 856	1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe	cmd.exe
PID 1960 wrote to memory of 856	1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe	cmd.exe
PID 856 wrote to memory of 1044	856	cmd.exe	reg.exe
PID 856 wrote to memory of 1044	856	cmd.exe	reg.exe
PID 856 wrote to memory of 1044	856	cmd.exe	reg.exe
PID 856 wrote to memory of 1044	856	cmd.exe	reg.exe
PID 1960 wrote to memory of 832	1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe	psr.exe
PID 1960 wrote to memory of 832	1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe	psr.exe
PID 1960 wrote to memory of 832	1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe	psr.exe
PID 1960 wrote to memory of 832	1960	e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe	psr.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe
PID 832 wrote to memory of 2012	832	psr.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe
"C:\Users\Admin\AppData\Local\Temp\e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v fgc /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\psr.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:856
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v fgc /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\psr.exe"
    3⤵
    - Adds Run key to start application
    PID:1044
- C:\Users\Admin\psr.exe
  "C:\Users\Admin\psr.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:832
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    PID:2012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\19f93e2a-4d97-4e0c-ade5-972e41ee6cf8\f.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\psr.exe

Filesize
546KB

MD5
0d8d14b3e6739610579cbcec8bcad92e

SHA1
5c5c5c3bc5b9277cd9a0483b7cd8ec6f85355b4c

SHA256
e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961

SHA512
dcc70688bb2d3cf8feeaf6492955ebb3789dd954da6b1a4c688750032f64e1cf114f4f3497fab1bc330587fa3746c30c9250a01400242d8514eeb10076a8db24

Download Submit
C:\Users\Admin\psr.exe

Filesize
546KB

MD5
0d8d14b3e6739610579cbcec8bcad92e

SHA1
5c5c5c3bc5b9277cd9a0483b7cd8ec6f85355b4c

SHA256
e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961

SHA512
dcc70688bb2d3cf8feeaf6492955ebb3789dd954da6b1a4c688750032f64e1cf114f4f3497fab1bc330587fa3746c30c9250a01400242d8514eeb10076a8db24

Download Submit
\Users\Admin\AppData\Local\Temp\19f93e2a-4d97-4e0c-ade5-972e41ee6cf8\f.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
\Users\Admin\AppData\Local\Temp\19f93e2a-4d97-4e0c-ade5-972e41ee6cf8\f.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe

Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\psr.exe

Filesize
546KB

MD5
0d8d14b3e6739610579cbcec8bcad92e

SHA1
5c5c5c3bc5b9277cd9a0483b7cd8ec6f85355b4c

SHA256
e3dc0ebb79c5497c927c15b67ea203ca2860681e3e8b063f91fec264193c5961

SHA512
dcc70688bb2d3cf8feeaf6492955ebb3789dd954da6b1a4c688750032f64e1cf114f4f3497fab1bc330587fa3746c30c9250a01400242d8514eeb10076a8db24

Download Submit
memory/832-70-0x0000000000A00000-0x0000000000A0C000-memory.dmp

Filesize
48KB

Download
memory/832-62-0x0000000000000000-mapping.dmp

Download
memory/832-65-0x0000000000D50000-0x0000000000DDE000-memory.dmp

Filesize
568KB

Download
memory/832-69-0x0000000074790000-0x0000000074810000-memory.dmp

Filesize
512KB

Download
memory/856-59-0x0000000000000000-mapping.dmp

Download
memory/1044-60-0x0000000000000000-mapping.dmp

Download
memory/1960-54-0x00000000003C0000-0x000000000044E000-memory.dmp

Filesize
568KB

Download
memory/1960-58-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1960-56-0x0000000000540000-0x000000000056C000-memory.dmp

Filesize
176KB

Download
memory/1960-55-0x0000000075381000-0x0000000075383000-memory.dmp

Filesize
8KB

Download
memory/2012-73-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2012-74-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2012-76-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2012-77-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2012-78-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2012-79-0x000000000046DB4E-mapping.dmp

Download
memory/2012-82-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2012-84-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download