097464ec913da3d525f2aa92f6f877d81b619a4ad59bdf9da567ff60ce985a3d

Analysis

max time kernel
112s
max time network
111s
platform
windows10_x64
resource
win10v20210408
submitted
19/04/2021, 15:50

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General

Target
Maksuvahvistus.exe
Size 1.4MB
Sample210419-2vv3dhthn2
SHA256 88e4cafa9fe18c0b4f53f5e0d176d78bf9f81bb02328ec448fa644be018747a4
MD5 4175c904492048c3b9613dfccfee588d
SHA1 4050df0d098e5678ed85a51e260732354298d67d
SHA512 22fd34f28f60216e386fd228bc3ebbac5f1c9a36805029186ca468bb42b89c0a88b1d0b411d3f24d8c3915f10a9df0fcf06c666a8ee62c687846e74d55e72f9c
MD5 SHA1 SHA512

Score

5^/10

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 64 set thread context of 696	64	Maksuvahvistus.exe	80

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

System Information Discovery
T1082

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
3520	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
64	Maksuvahvistus.exe
64	Maksuvahvistus.exe
64	Maksuvahvistus.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	64	Maksuvahvistus.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 64 wrote to memory of 3520	64	Maksuvahvistus.exe	78
PID 64 wrote to memory of 3520	64	Maksuvahvistus.exe	78
PID 64 wrote to memory of 3520	64	Maksuvahvistus.exe	78
PID 64 wrote to memory of 696	64	Maksuvahvistus.exe	80
PID 64 wrote to memory of 696	64	Maksuvahvistus.exe	80
PID 64 wrote to memory of 696	64	Maksuvahvistus.exe	80
PID 64 wrote to memory of 696	64	Maksuvahvistus.exe	80
PID 64 wrote to memory of 696	64	Maksuvahvistus.exe	80
PID 64 wrote to memory of 696	64	Maksuvahvistus.exe	80
PID 64 wrote to memory of 696	64	Maksuvahvistus.exe	80
PID 64 wrote to memory of 696	64	Maksuvahvistus.exe	80

C:\Users\Admin\AppData\Local\Temp\Maksuvahvistus.exe
"C:\Users\Admin\AppData\Local\Temp\Maksuvahvistus.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:64
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FqakjeocsG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFA5E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3520
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:696

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/64-123-0x00000000061B0000-0x00000000062F1000-memory.dmp

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memory/64-116-0x00000000051C0000-0x00000000051C1000-memory.dmp

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memory/64-118-0x0000000005380000-0x0000000005381000-memory.dmp

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memory/64-119-0x00000000052B0000-0x00000000052B1000-memory.dmp

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memory/64-120-0x00000000054E0000-0x00000000054E1000-memory.dmp

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memory/64-121-0x00000000052E0000-0x00000000057DE000-memory.dmp

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memory/64-117-0x00000000057E0000-0x00000000057E1000-memory.dmp

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memory/64-122-0x0000000005370000-0x0000000005376000-memory.dmp

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memory/64-124-0x00000000097E0000-0x00000000098E9000-memory.dmp

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memory/64-114-0x00000000008B0000-0x00000000008B1000-memory.dmp

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memory/696-127-0x0000000000400000-0x00000000004D0000-memory.dmp

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memory/696-136-0x00000000057E0000-0x00000000057E4000-memory.dmp

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memory/696-138-0x000000007FB80000-0x000000007FB81000-memory.dmp

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memory/696-137-0x0000000005350000-0x000000000584E000-memory.dmp

Download