masslogger | f0e3d1d1dd4b0b69a99c24ce4217194e9cbbb4f1efd8edcb8831f6e889c9b5cd

Resubmissions

28/01/2023, 20:16

230128-y18sjagb9310

15/12/2022, 12:15

221215-pexcyafc8w10

Analysis

max time kernel
42s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
15/12/2022, 12:15

Sharing

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General

Target
img014012022.exe
Size 667KB
Sample221215-pexcyafc8w
SHA256 f0e3d1d1dd4b0b69a99c24ce4217194e9cbbb4f1efd8edcb8831f6e889c9b5cd
MD5 0d8c9a1bf7c59fc5623bc97992c84d68
SHA1 f83fd12fc4ba8c891f01f93e4dbec5dd7106cbc3
SHA512 776d9e66da6c499d54b760f930b7c080be33daabff33e4b9670701f21373f307af602e124ce414b3b354277c5604ae7811105dd9a8d2d8f03571e467947a3d2d
SSDEEP 12288:aRW65WWrYINieIUYXPFvWYGegce9pZIdTPxM6uMdmLN4NQ/h1aikvhmF:mW65WWrYIUeIUYXP9WYGegceQN766NKL
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

masslogger collection 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 2 IoCs

resource	yara_rule
behavioral1/memory/952-67-0x0000000000BB0000-0x0000000000C34000-memory.dmp	family_masslogger
behavioral1/memory/952-68-0x0000000000400000-0x0000000000494000-memory.dmp	family_masslogger

Executes dropped EXE 2 IoCs

pid	Process
308	jjimhzdgo.exe
952	jjimhzdgo.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-1-5-21-2292972927-2705560509-2768824231-1000\Control Panel\International\Geo\Nation	jjimhzdgo.exe

Loads dropped DLL 3 IoCs

pid	Process
1112	img014012022.exe
1112	img014012022.exe
308	jjimhzdgo.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 Microsoft Outlook profiles 1 TTPs 35 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	jjimhzdgo.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe

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
3	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 308 set thread context of 952	308	jjimhzdgo.exe	29

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 3 IoCs

pid	Process
952	jjimhzdgo.exe
952	jjimhzdgo.exe
952	jjimhzdgo.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
308	jjimhzdgo.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	952	jjimhzdgo.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 308	1112	img014012022.exe	28
PID 1112 wrote to memory of 308	1112	img014012022.exe	28
PID 1112 wrote to memory of 308	1112	img014012022.exe	28
PID 1112 wrote to memory of 308	1112	img014012022.exe	28
PID 308 wrote to memory of 952	308	jjimhzdgo.exe	29
PID 308 wrote to memory of 952	308	jjimhzdgo.exe	29
PID 308 wrote to memory of 952	308	jjimhzdgo.exe	29
PID 308 wrote to memory of 952	308	jjimhzdgo.exe	29
PID 308 wrote to memory of 952	308	jjimhzdgo.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jjimhzdgo.exe

C:\Users\Admin\AppData\Local\Temp\img014012022.exe
"C:\Users\Admin\AppData\Local\Temp\img014012022.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Users\Admin\AppData\Local\Temp\jjimhzdgo.exe
  "C:\Users\Admin\AppData\Local\Temp\jjimhzdgo.exe" C:\Users\Admin\AppData\Local\Temp\gjoxrlrsi.k
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:308
- - C:\Users\Admin\AppData\Local\Temp\jjimhzdgo.exe
    "C:\Users\Admin\AppData\Local\Temp\jjimhzdgo.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:952

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

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

djgcoe.ef

Path C:\Users\Admin\AppData\Local\Temp\djgcoe.ef
Size 577KB
SHA256 93ac2fc5a1127495112cad16ace27883257d91de544c78c1bf06892d6f86e44b
MD5 ec34e86bfd01061019a84fe7c04a7bd6
SHA1 903985c33ce607533cf6deb19b13aed83bd97e1a
SHA512 fe1452b12bb64b92ee02452fdcd382c512135894a2d635301dd4f1ed3d1cf584321b6726b51997f39ffcff2b47107bb4e1d9d16bc6817eae5300c45ae6184b1d
SSDEEP 12288:v7DUeYKpdwYHpuKURS6+8x3ia23prKljG1Tt899IivQB1UnJkYUV:XjRvMKAT23prK0TG9rkr
MD5 SHA1 SHA512 SSDEEP

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gjoxrlrsi.k

Path C:\Users\Admin\AppData\Local\Temp\gjoxrlrsi.k
Size 5KB
SHA256 f7bba681f02389bdb4471bcef5f576db7639879e61d7260ff63ba1185e291fca
MD5 cc754a54f4c748a05942f7676fe5eb50
SHA1 1f22f0c2b3360d16a7ebabca3fe6b023870d9535
SHA512 23ecc16053523547411b7279a0a3493a92daae77974d87cc44c29513f59730049b383ef197a194a77392830481bf51edb6eeeecae285945ec9c845cff656eabe
SSDEEP 96:oJ98usUFhITuX1UDF8FohWimMQI2/f1kWWDQPpkUUK3jb/odDchwAqfMwQgOu1BV:oJSu5V2DF8FohWimMof2WWspkUUsv/o7
MD5 SHA1 SHA512 SSDEEP

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jjimhzdgo.exe

Path C:\Users\Admin\AppData\Local\Temp\jjimhzdgo.exe
Size 327KB
SHA256 d46d25a70976db5f373fb7a2e93adaf9b3ace962dc95d3c45f4f58f5de033f60
MD5 a4cc2d055427ab48e6323360250433e8
SHA1 a88fe1182074a402a28862c66d0ac404116e8a4a
SHA512 6f5cae9adaed2d7e982276a075bb69aa6206cec918f74f6f6c207e1066dbb0882ed1368ca2b5f63601f7a3ba786ec9ee31bf471a9eff30ac2a30c5ab2ff11869
SSDEEP 6144:1BEugKpW6uSVnYfaVsZj+q3Bl+uV+nWtuF:gy7uSVnYC2d+uV+xF
MD5 SHA1 SHA512 SSDEEP

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jjimhzdgo.exe

Path C:\Users\Admin\AppData\Local\Temp\jjimhzdgo.exe
Size 327KB
SHA256 d46d25a70976db5f373fb7a2e93adaf9b3ace962dc95d3c45f4f58f5de033f60
MD5 a4cc2d055427ab48e6323360250433e8
SHA1 a88fe1182074a402a28862c66d0ac404116e8a4a
SHA512 6f5cae9adaed2d7e982276a075bb69aa6206cec918f74f6f6c207e1066dbb0882ed1368ca2b5f63601f7a3ba786ec9ee31bf471a9eff30ac2a30c5ab2ff11869
SSDEEP 6144:1BEugKpW6uSVnYfaVsZj+q3Bl+uV+nWtuF:gy7uSVnYC2d+uV+xF
MD5 SHA1 SHA512 SSDEEP

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jjimhzdgo.exe

Path C:\Users\Admin\AppData\Local\Temp\jjimhzdgo.exe
Size 327KB
SHA256 d46d25a70976db5f373fb7a2e93adaf9b3ace962dc95d3c45f4f58f5de033f60
MD5 a4cc2d055427ab48e6323360250433e8
SHA1 a88fe1182074a402a28862c66d0ac404116e8a4a
SHA512 6f5cae9adaed2d7e982276a075bb69aa6206cec918f74f6f6c207e1066dbb0882ed1368ca2b5f63601f7a3ba786ec9ee31bf471a9eff30ac2a30c5ab2ff11869
SSDEEP 6144:1BEugKpW6uSVnYfaVsZj+q3Bl+uV+nWtuF:gy7uSVnYC2d+uV+xF
MD5 SHA1 SHA512 SSDEEP

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jjimhzdgo.exe

Path \Users\Admin\AppData\Local\Temp\jjimhzdgo.exe
Size 327KB
SHA256 d46d25a70976db5f373fb7a2e93adaf9b3ace962dc95d3c45f4f58f5de033f60
MD5 a4cc2d055427ab48e6323360250433e8
SHA1 a88fe1182074a402a28862c66d0ac404116e8a4a
SHA512 6f5cae9adaed2d7e982276a075bb69aa6206cec918f74f6f6c207e1066dbb0882ed1368ca2b5f63601f7a3ba786ec9ee31bf471a9eff30ac2a30c5ab2ff11869
SSDEEP 6144:1BEugKpW6uSVnYfaVsZj+q3Bl+uV+nWtuF:gy7uSVnYC2d+uV+xF
MD5 SHA1 SHA512 SSDEEP

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jjimhzdgo.exe

Path \Users\Admin\AppData\Local\Temp\jjimhzdgo.exe
Size 327KB
SHA256 d46d25a70976db5f373fb7a2e93adaf9b3ace962dc95d3c45f4f58f5de033f60
MD5 a4cc2d055427ab48e6323360250433e8
SHA1 a88fe1182074a402a28862c66d0ac404116e8a4a
SHA512 6f5cae9adaed2d7e982276a075bb69aa6206cec918f74f6f6c207e1066dbb0882ed1368ca2b5f63601f7a3ba786ec9ee31bf471a9eff30ac2a30c5ab2ff11869
SSDEEP 6144:1BEugKpW6uSVnYfaVsZj+q3Bl+uV+nWtuF:gy7uSVnYC2d+uV+xF
MD5 SHA1 SHA512 SSDEEP

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jjimhzdgo.exe

Path \Users\Admin\AppData\Local\Temp\jjimhzdgo.exe
Size 327KB
SHA256 d46d25a70976db5f373fb7a2e93adaf9b3ace962dc95d3c45f4f58f5de033f60
MD5 a4cc2d055427ab48e6323360250433e8
SHA1 a88fe1182074a402a28862c66d0ac404116e8a4a
SHA512 6f5cae9adaed2d7e982276a075bb69aa6206cec918f74f6f6c207e1066dbb0882ed1368ca2b5f63601f7a3ba786ec9ee31bf471a9eff30ac2a30c5ab2ff11869
SSDEEP 6144:1BEugKpW6uSVnYfaVsZj+q3Bl+uV+nWtuF:gy7uSVnYC2d+uV+xF
MD5 SHA1 SHA512 SSDEEP

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memory/952-67-0x0000000000BB0000-0x0000000000C34000-memory.dmp

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memory/952-68-0x0000000000400000-0x0000000000494000-memory.dmp

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memory/952-69-0x00000000001B0000-0x00000000001F0000-memory.dmp

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memory/1112-54-0x0000000074D61000-0x0000000074D63000-memory.dmp

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