masslogger | d2232949a80b21e9c967490be35b87ba8e5495cb61b10493b5adb1297e37dd4b

Analysis

max time kernel
151s
max time network
156s
platform
windows7_x64
resource
win7-20220414-en
submitted
20-05-2022 23:45

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General

Target

Neptune_028887E.exe
Size

1.4MB
MD5

8dff4b620965db5895629bc5e4733154
SHA1

7aab2496a2cba81df62eb42b6b069dcba4e80424
SHA256

8ba2916d91cfaa19c67d2e8a9603fca8a41fac3f960b79edcadab0bb094c3e52
SHA512

fc901d3cb5908ee2a094577d669d0acba760e2ea30fd514845ce674dd0e150c9813c4ef933b76521e93d7357aa5e432f5ee1493468497caa013a4b795087a846

Score

10^/10

masslogger agilenet spyware stealer

Malware Config

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 38 IoCs

resource	yara_rule
behavioral1/memory/1708-54-0x0000000000E00000-0x0000000000F72000-memory.dmp	family_masslogger
behavioral1/files/0x0009000000012733-59.dat	family_masslogger
behavioral1/files/0x0009000000012733-61.dat	family_masslogger
behavioral1/files/0x0009000000012733-62.dat	family_masslogger
behavioral1/memory/1252-63-0x00000000003A0000-0x0000000000512000-memory.dmp	family_masslogger
behavioral1/memory/1468-72-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-73-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-74-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-75-0x00000000004ACB6E-mapping.dmp	family_masslogger
behavioral1/memory/1468-78-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-80-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-82-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-84-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-86-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-88-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-90-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-92-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-94-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-96-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-98-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-100-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-102-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-104-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-106-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-108-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-110-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-112-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-114-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-116-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-118-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-120-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-122-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-124-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-126-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-128-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-130-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-132-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1468-134-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger

Executes dropped EXE 2 IoCs

pid	Process
1252	mas.exe
1468	InstallUtil.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation	InstallUtil.exe

Loads dropped DLL 2 IoCs

pid	Process
1708	Neptune_028887E.exe
1252	mas.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/1708-56-0x00000000004A0000-0x00000000004AA000-memory.dmp	agile_net

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1252 set thread context of 1468	1252	mas.exe	34

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1708	Neptune_028887E.exe
1708	Neptune_028887E.exe
1252	mas.exe
1252	mas.exe
1252	mas.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	Neptune_028887E.exe
Token: SeDebugPrivilege	1252	mas.exe
Token: SeDebugPrivilege	1468	InstallUtil.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 2008	1708	Neptune_028887E.exe	27
PID 1708 wrote to memory of 2008	1708	Neptune_028887E.exe	27
PID 1708 wrote to memory of 2008	1708	Neptune_028887E.exe	27
PID 1708 wrote to memory of 2008	1708	Neptune_028887E.exe	27
PID 2008 wrote to memory of 1972	2008	cmd.exe	29
PID 2008 wrote to memory of 1972	2008	cmd.exe	29
PID 2008 wrote to memory of 1972	2008	cmd.exe	29
PID 2008 wrote to memory of 1972	2008	cmd.exe	29
PID 1708 wrote to memory of 1252	1708	Neptune_028887E.exe	30
PID 1708 wrote to memory of 1252	1708	Neptune_028887E.exe	30
PID 1708 wrote to memory of 1252	1708	Neptune_028887E.exe	30
PID 1708 wrote to memory of 1252	1708	Neptune_028887E.exe	30
PID 1252 wrote to memory of 820	1252	mas.exe	31
PID 1252 wrote to memory of 820	1252	mas.exe	31
PID 1252 wrote to memory of 820	1252	mas.exe	31
PID 1252 wrote to memory of 820	1252	mas.exe	31
PID 820 wrote to memory of 1492	820	cmd.exe	33
PID 820 wrote to memory of 1492	820	cmd.exe	33
PID 820 wrote to memory of 1492	820	cmd.exe	33
PID 820 wrote to memory of 1492	820	cmd.exe	33
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34
PID 1252 wrote to memory of 1468	1252	mas.exe	34

C:\Users\Admin\AppData\Local\Temp\Neptune_028887E.exe
"C:\Users\Admin\AppData\Local\Temp\Neptune_028887E.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\mas.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\mas.exe"
    3⤵
    PID:1972
- C:\Users\Admin\AppData\Roaming\mas.exe
  "C:\Users\Admin\AppData\Roaming\mas.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1252
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\mas.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:820
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\mas.exe"
      4⤵
      PID:1492
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious use of AdjustPrivilegeToken
    PID:1468

Network

MITRE ATT&CK Enterprise v6

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

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\AppData\Roaming\mas.exe

Filesize
1.4MB

MD5
8dff4b620965db5895629bc5e4733154

SHA1
7aab2496a2cba81df62eb42b6b069dcba4e80424

SHA256
8ba2916d91cfaa19c67d2e8a9603fca8a41fac3f960b79edcadab0bb094c3e52

SHA512
fc901d3cb5908ee2a094577d669d0acba760e2ea30fd514845ce674dd0e150c9813c4ef933b76521e93d7357aa5e432f5ee1493468497caa013a4b795087a846

Download Submit
C:\Users\Admin\AppData\Roaming\mas.exe

Filesize
1.4MB

MD5
8dff4b620965db5895629bc5e4733154

SHA1
7aab2496a2cba81df62eb42b6b069dcba4e80424

SHA256
8ba2916d91cfaa19c67d2e8a9603fca8a41fac3f960b79edcadab0bb094c3e52

SHA512
fc901d3cb5908ee2a094577d669d0acba760e2ea30fd514845ce674dd0e150c9813c4ef933b76521e93d7357aa5e432f5ee1493468497caa013a4b795087a846

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

Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Roaming\mas.exe

Filesize
1.4MB

MD5
8dff4b620965db5895629bc5e4733154

SHA1
7aab2496a2cba81df62eb42b6b069dcba4e80424

SHA256
8ba2916d91cfaa19c67d2e8a9603fca8a41fac3f960b79edcadab0bb094c3e52

SHA512
fc901d3cb5908ee2a094577d669d0acba760e2ea30fd514845ce674dd0e150c9813c4ef933b76521e93d7357aa5e432f5ee1493468497caa013a4b795087a846

Download Submit
memory/1252-66-0x0000000004710000-0x000000000471A000-memory.dmp

Filesize
40KB

Download
memory/1252-63-0x00000000003A0000-0x0000000000512000-memory.dmp

Filesize
1.4MB

Download
memory/1468-86-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-96-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-595-0x0000000000560000-0x00000000005A4000-memory.dmp

Filesize
272KB

Download
memory/1468-134-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-132-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-130-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-78-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-80-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-82-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-84-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-128-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-88-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-90-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-92-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-94-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-126-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-98-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-100-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-102-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-104-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-106-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-108-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-110-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-112-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-114-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-116-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-118-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-120-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-122-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1468-124-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1708-54-0x0000000000E00000-0x0000000000F72000-memory.dmp

Filesize
1.4MB

Download
memory/1708-55-0x0000000000460000-0x000000000047E000-memory.dmp

Filesize
120KB

Download
memory/1708-56-0x00000000004A0000-0x00000000004AA000-memory.dmp

Filesize
40KB

Download