masslogger | b40856677db5bc7c1f038452b8d1bc42eb805aae103dc3fc2bc8a6c1b1deb7e4

General

Target

5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
Size

1.1MB
MD5

5bf1809efee424da32006e4f83b75082
SHA1

37ff3356852a25fe9523a42608e73594a2e7df2c
SHA256

b40856677db5bc7c1f038452b8d1bc42eb805aae103dc3fc2bc8a6c1b1deb7e4
SHA512

9b12387e28bc2f0c6ddbc0f4837be966a0b79394536b80d99aecfd9d45e8ec6b4dadb74f41f751f161ec7cca93df3ba1141c20c9142bdc9f78a0a30e836eaa59
SSDEEP

24576:8yB8RjP6+YdEFOWMPHOXOIt/Q8Dbc6LODUKDLBKMKjk:gEEFxXOIt/Q83tODUKJQj

Score

10^/10

masslogger defense_evasion discovery 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 1 IoCs

resource	yara_rule
behavioral2/memory/640-9-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger

Deletes itself 1 IoCs

pid	Process
4172	powershell.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1372 set thread context of 640	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	98

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
640	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
640	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
4172	powershell.exe
4172	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
Token: SeDebugPrivilege	640	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
Token: SeDebugPrivilege	4172	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 1940	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	97
PID 1372 wrote to memory of 1940	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	97
PID 1372 wrote to memory of 1940	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	97
PID 1372 wrote to memory of 640	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	98
PID 1372 wrote to memory of 640	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	98
PID 1372 wrote to memory of 640	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	98
PID 1372 wrote to memory of 640	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	98
PID 1372 wrote to memory of 640	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	98
PID 1372 wrote to memory of 640	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	98
PID 1372 wrote to memory of 640	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	98
PID 1372 wrote to memory of 640	1372	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	98
PID 640 wrote to memory of 4172	640	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	99
PID 640 wrote to memory of 4172	640	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	99
PID 640 wrote to memory of 4172	640	5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe	99

C:\Users\Admin\AppData\Local\Temp\5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Users\Admin\AppData\Local\Temp\5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
  "{path}"
  2⤵
  PID:1940
- C:\Users\Admin\AppData\Local\Temp\5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe'
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\5bf1809efee424da32006e4f83b75082_JaffaCakes118.exe.log

Filesize
412B

MD5
e72888b5960716cf170f3e1becd14370

SHA1
0aeefd2d4a7948a03aad625ca86fc34d79adf248

SHA256
8317f594f74040b50e1b88f4aba5e6da3423bf47fe91df59e6e85f37b1f7e0ab

SHA512
9cdfda6fc4f324dfd8d53b46610114252431a5d26296a6f3d606b8ffeef172263fbde9ce0a1b2b9232dabcdabd33d6677e9a5f7693b175f24cea622c31b5c6b7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b5qxjerr.wrb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/640-17-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/640-9-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/640-19-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/640-16-0x00000000055E0000-0x0000000005646000-memory.dmp

Filesize
408KB

Download
memory/640-15-0x0000000005C70000-0x0000000006214000-memory.dmp

Filesize
5.6MB

Download
memory/640-14-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/640-13-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/1372-1-0x0000000000960000-0x0000000000A7C000-memory.dmp

Filesize
1.1MB

Download
memory/1372-2-0x00000000053C0000-0x000000000545C000-memory.dmp

Filesize
624KB

Download
memory/1372-12-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/1372-8-0x0000000008220000-0x00000000082F2000-memory.dmp

Filesize
840KB

Download
memory/1372-7-0x0000000005DA0000-0x0000000005E72000-memory.dmp

Filesize
840KB

Download
memory/1372-6-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/1372-5-0x000000007472E000-0x000000007472F000-memory.dmp

Filesize
4KB

Download
memory/1372-4-0x0000000005570000-0x0000000005602000-memory.dmp

Filesize
584KB

Download
memory/1372-0-0x000000007472E000-0x000000007472F000-memory.dmp

Filesize
4KB

Download
memory/1372-3-0x0000000005390000-0x00000000053A2000-memory.dmp

Filesize
72KB

Download
memory/4172-21-0x0000000004F20000-0x0000000005548000-memory.dmp

Filesize
6.2MB

Download
memory/4172-35-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

Filesize
120KB

Download
memory/4172-22-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/4172-23-0x0000000004D80000-0x0000000004DA2000-memory.dmp

Filesize
136KB

Download
memory/4172-29-0x0000000005650000-0x00000000056B6000-memory.dmp

Filesize
408KB

Download
memory/4172-18-0x0000000002450000-0x0000000002486000-memory.dmp

Filesize
216KB

Download
memory/4172-34-0x00000000057E0000-0x0000000005B34000-memory.dmp

Filesize
3.3MB

Download
memory/4172-20-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/4172-36-0x0000000005E00000-0x0000000005E4C000-memory.dmp

Filesize
304KB

Download
memory/4172-37-0x0000000007410000-0x0000000007A8A000-memory.dmp

Filesize
6.5MB

Download
memory/4172-38-0x00000000062D0000-0x00000000062EA000-memory.dmp

Filesize
104KB

Download
memory/4172-39-0x0000000006E30000-0x0000000006EC6000-memory.dmp

Filesize
600KB

Download
memory/4172-40-0x0000000006390000-0x00000000063B2000-memory.dmp

Filesize
136KB

Download
memory/4172-43-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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