masslogger | d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf

Analysis

max time kernel
144s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
03/05/2022, 20:37

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General

Target
d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe
Size 973KB
Sample220503-zees1aegaq
SHA256 d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf
MD5 916541e6803dd6f2339ddac435cc28bc
SHA1 088b005106dcf95ccb214902f9bd671bc386ae36
SHA512 c59dcae9683b9863c5b805ff9ce81070ef572c2108d4209b6ad64d005359e27f328a0f8e3acc26c4d85435e3f30d8e4e7fd2c6a8de8df380e961a87c2a6e377d
MD5 SHA1 SHA512

Score

10^/10

masslogger 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/4820-135-0x0000000000700000-0x0000000000786000-memory.dmp	family_masslogger

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1372 set thread context of 4820	1372	d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe	84

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3104	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4820	MSBuild.exe
4820	MSBuild.exe
5116	powershell.exe
5116	powershell.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1372	d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe
1372	d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4820	MSBuild.exe
Token: SeDebugPrivilege	5116	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 2792	1372	d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe	82
PID 1372 wrote to memory of 2792	1372	d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe	82
PID 1372 wrote to memory of 2792	1372	d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe	82
PID 2792 wrote to memory of 3104	2792	cmd.exe	83
PID 2792 wrote to memory of 3104	2792	cmd.exe	83
PID 2792 wrote to memory of 3104	2792	cmd.exe	83
PID 1372 wrote to memory of 4820	1372	d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe	84
PID 1372 wrote to memory of 4820	1372	d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe	84
PID 1372 wrote to memory of 4820	1372	d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe	84
PID 1372 wrote to memory of 4820	1372	d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe	84
PID 4820 wrote to memory of 5116	4820	MSBuild.exe	86
PID 4820 wrote to memory of 5116	4820	MSBuild.exe	86
PID 4820 wrote to memory of 5116	4820	MSBuild.exe	86

C:\Users\Admin\AppData\Local\Temp\d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe
"C:\Users\Admin\AppData\Local\Temp\d8bbf2d84a533532848b4895833af517da967466375738988cf5b4c40f7213cf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Windows\SysWOW64\cmd.exe
  cmd /c schtasks /Create /TN hghyh /XML "C:\Users\Admin\AppData\Local\Temp\b118352451ca445c83c32e8ee5d2d5c5.xml"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Create /TN hghyh /XML "C:\Users\Admin\AppData\Local\Temp\b118352451ca445c83c32e8ee5d2d5c5.xml"
    3⤵
    - Creates scheduled task(s)
    PID:3104
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4820
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

b118352451ca445c83c32e8ee5d2d5c5.xml

Path C:\Users\Admin\AppData\Local\Temp\b118352451ca445c83c32e8ee5d2d5c5.xml
Size 1KB
SHA256 38088ccde363d6af735239dbf5e062eb0c5e926f8d72addf561dffebf830f172
MD5 12be634099c54477e564595c524d8c63
SHA1 7fd1e9e90f9d9f16c359f3713739e804bd36c794
SHA512 fe253c38145d63e695993dad2ba6229bd00636167b98396778187db7e9f8e4871e1cdf11d0ad91762b38533783fab19b19503db2851d4c83f5aa60c6f2813ae2
MD5 SHA1 SHA512

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memory/1372-130-0x000000000060A000-0x0000000000610000-memory.dmp

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memory/4820-138-0x0000000005290000-0x00000000052F6000-memory.dmp

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memory/4820-135-0x0000000000700000-0x0000000000786000-memory.dmp

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memory/4820-136-0x00000000051F0000-0x0000000005282000-memory.dmp

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memory/4820-137-0x0000000005840000-0x0000000005DE4000-memory.dmp

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memory/5116-141-0x0000000005350000-0x0000000005978000-memory.dmp

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memory/5116-140-0x0000000004B30000-0x0000000004B66000-memory.dmp

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memory/5116-142-0x0000000005130000-0x0000000005152000-memory.dmp

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memory/5116-143-0x00000000052D0000-0x0000000005336000-memory.dmp

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memory/5116-144-0x00000000060F0000-0x000000000610E000-memory.dmp

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memory/5116-145-0x0000000007730000-0x0000000007DAA000-memory.dmp

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memory/5116-146-0x00000000065F0000-0x000000000660A000-memory.dmp

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memory/5116-147-0x0000000007350000-0x00000000073E6000-memory.dmp

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memory/5116-148-0x0000000004E60000-0x0000000004E82000-memory.dmp

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