a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28

Analysis

max time kernel
43s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
06-12-2022 14:42

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General

Target

a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
Size

65KB
MD5

28d83f66f75200ea00912691a493914c
SHA1

a90020dce759e498ad899449159f635a0f16a07f
SHA256

a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28
SHA512

26368b6991c4c82fc932a581c836ee89feaa5479f30db097af9bc8395aa1839e07e5d308945140f95dc2ffd5c70bcbf3997ecafd4f26080438a493e9f95b311a
SSDEEP

1536:wD0PSuUXJQFDbWw/rZoVGGbNSY+A37feaCMJDmYb:SzqDbLrZoccSDADeak2

Score

8^/10

persistence

Malware Config

Signatures

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
File opened for modification	C:\Windows\system32\drivers\etc\hosts	mancstmgr.exe

Executes dropped EXE 3 IoCs

pid	Process
1776	mancstmgr.exe
1876	mancstmgr.exe
1816	mancstmgr.exe

Deletes itself 1 IoCs

pid	Process
1328	cmd.exe

Loads dropped DLL 4 IoCs

pid	Process
2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
1876	mancstmgr.exe
1876	mancstmgr.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSN CST Manager = "mancstmgr.exe"	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	mancstmgr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSN CST Manager = "mancstmgr.exe"	mancstmgr.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mancstmgr.exe	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
File opened for modification	C:\Windows\SysWOW64\mancstmgr.exe	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
File created	C:\Windows\SysWOW64\mancstmgr.exe	mancstmgr.exe
File opened for modification	C:\Windows\SysWOW64\mancstmgr.exe	mancstmgr.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1184 set thread context of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 1776 set thread context of 1876	1776	mancstmgr.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 use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
Token: SeIncBasePriorityPrivilege	1876	mancstmgr.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 1184 wrote to memory of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 1184 wrote to memory of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 1184 wrote to memory of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 1184 wrote to memory of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 1184 wrote to memory of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 1184 wrote to memory of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 1184 wrote to memory of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 1184 wrote to memory of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 1184 wrote to memory of 2040	1184	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	27
PID 2040 wrote to memory of 1776	2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	28
PID 2040 wrote to memory of 1776	2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	28
PID 2040 wrote to memory of 1776	2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	28
PID 2040 wrote to memory of 1776	2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	28
PID 1776 wrote to memory of 1876	1776	mancstmgr.exe	29
PID 1776 wrote to memory of 1876	1776	mancstmgr.exe	29
PID 1776 wrote to memory of 1876	1776	mancstmgr.exe	29
PID 1776 wrote to memory of 1876	1776	mancstmgr.exe	29
PID 2040 wrote to memory of 1328	2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	30
PID 2040 wrote to memory of 1328	2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	30
PID 2040 wrote to memory of 1328	2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	30
PID 2040 wrote to memory of 1328	2040	a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe	30
PID 1776 wrote to memory of 1876	1776	mancstmgr.exe	29
PID 1776 wrote to memory of 1876	1776	mancstmgr.exe	29
PID 1776 wrote to memory of 1876	1776	mancstmgr.exe	29
PID 1776 wrote to memory of 1876	1776	mancstmgr.exe	29
PID 1776 wrote to memory of 1876	1776	mancstmgr.exe	29
PID 1776 wrote to memory of 1876	1776	mancstmgr.exe	29
PID 1876 wrote to memory of 1816	1876	mancstmgr.exe	32
PID 1876 wrote to memory of 1816	1876	mancstmgr.exe	32
PID 1876 wrote to memory of 1816	1876	mancstmgr.exe	32
PID 1876 wrote to memory of 1816	1876	mancstmgr.exe	32
PID 1816 wrote to memory of 964	1816	mancstmgr.exe	33
PID 1816 wrote to memory of 964	1816	mancstmgr.exe	33
PID 1816 wrote to memory of 964	1816	mancstmgr.exe	33
PID 1816 wrote to memory of 964	1816	mancstmgr.exe	33
PID 1876 wrote to memory of 304	1876	mancstmgr.exe	34
PID 1876 wrote to memory of 304	1876	mancstmgr.exe	34
PID 1876 wrote to memory of 304	1876	mancstmgr.exe	34
PID 1876 wrote to memory of 304	1876	mancstmgr.exe	34

C:\Users\Admin\AppData\Local\Temp\a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
"C:\Users\Admin\AppData\Local\Temp\a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe
  "C:\Users\Admin\AppData\Local\Temp\a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28.exe"
  2⤵
  - Drops file in Drivers directory
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2040
- - C:\Windows\SysWOW64\mancstmgr.exe
    "C:\Windows\system32\mancstmgr.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1776
  - - C:\Windows\SysWOW64\mancstmgr.exe
      "C:\Windows\SysWOW64\mancstmgr.exe"
      4⤵
      Drops file in Drivers directory
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Drops file in System32 directory
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1876
    - - C:\Windows\SysWOW64\mancstmgr.exe
        
        "C:\Windows\system32\mancstmgr.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:1816
      - C:\Windows\SysWOW64\mancstmgr.exe
        
        "C:\Windows\SysWOW64\mancstmgr.exe"
        6⤵
        
        PID:964
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c del C:\Windows\SysWOW64\MANCST~1.EXE > nul
        5⤵
        
        PID:304
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A0625D~1.EXE > nul
    3⤵
    - Deletes itself
    PID:1328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\mancstmgr.exe

Filesize
65KB

MD5
28d83f66f75200ea00912691a493914c

SHA1
a90020dce759e498ad899449159f635a0f16a07f

SHA256
a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28

SHA512
26368b6991c4c82fc932a581c836ee89feaa5479f30db097af9bc8395aa1839e07e5d308945140f95dc2ffd5c70bcbf3997ecafd4f26080438a493e9f95b311a

Download Submit
C:\Windows\SysWOW64\mancstmgr.exe

Filesize
65KB

MD5
28d83f66f75200ea00912691a493914c

SHA1
a90020dce759e498ad899449159f635a0f16a07f

SHA256
a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28

SHA512
26368b6991c4c82fc932a581c836ee89feaa5479f30db097af9bc8395aa1839e07e5d308945140f95dc2ffd5c70bcbf3997ecafd4f26080438a493e9f95b311a

Download Submit
C:\Windows\SysWOW64\mancstmgr.exe

Filesize
65KB

MD5
28d83f66f75200ea00912691a493914c

SHA1
a90020dce759e498ad899449159f635a0f16a07f

SHA256
a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28

SHA512
26368b6991c4c82fc932a581c836ee89feaa5479f30db097af9bc8395aa1839e07e5d308945140f95dc2ffd5c70bcbf3997ecafd4f26080438a493e9f95b311a

Download Submit
C:\Windows\SysWOW64\mancstmgr.exe

Filesize
65KB

MD5
28d83f66f75200ea00912691a493914c

SHA1
a90020dce759e498ad899449159f635a0f16a07f

SHA256
a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28

SHA512
26368b6991c4c82fc932a581c836ee89feaa5479f30db097af9bc8395aa1839e07e5d308945140f95dc2ffd5c70bcbf3997ecafd4f26080438a493e9f95b311a

Download Submit
C:\Windows\system32\drivers\etc\hosts

Filesize
2KB

MD5
e70a6bb213f4e35bc7ba89512fc78396

SHA1
00e76893d4e3b73ec668f4670e2e154bd567ff23

SHA256
80ad1dcfb41f58b21cfbbaa1a35bf0f85034d91e5f886eec44e2a4c3a63b6d85

SHA512
45bc02e515132ab698fd1c52ecf59c7d3b629f87dcd5be214548ea27f3b056f0c4ad77beb385c3491b05bcc6c91cf6020552096108a2d928ea7faab4bf14c7c8

Download Submit
\Windows\SysWOW64\mancstmgr.exe

Filesize
65KB

MD5
28d83f66f75200ea00912691a493914c

SHA1
a90020dce759e498ad899449159f635a0f16a07f

SHA256
a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28

SHA512
26368b6991c4c82fc932a581c836ee89feaa5479f30db097af9bc8395aa1839e07e5d308945140f95dc2ffd5c70bcbf3997ecafd4f26080438a493e9f95b311a

Download Submit
\Windows\SysWOW64\mancstmgr.exe

Filesize
65KB

MD5
28d83f66f75200ea00912691a493914c

SHA1
a90020dce759e498ad899449159f635a0f16a07f

SHA256
a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28

SHA512
26368b6991c4c82fc932a581c836ee89feaa5479f30db097af9bc8395aa1839e07e5d308945140f95dc2ffd5c70bcbf3997ecafd4f26080438a493e9f95b311a

Download Submit
\Windows\SysWOW64\mancstmgr.exe

Filesize
65KB

MD5
28d83f66f75200ea00912691a493914c

SHA1
a90020dce759e498ad899449159f635a0f16a07f

SHA256
a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28

SHA512
26368b6991c4c82fc932a581c836ee89feaa5479f30db097af9bc8395aa1839e07e5d308945140f95dc2ffd5c70bcbf3997ecafd4f26080438a493e9f95b311a

Download Submit
\Windows\SysWOW64\mancstmgr.exe

Filesize
65KB

MD5
28d83f66f75200ea00912691a493914c

SHA1
a90020dce759e498ad899449159f635a0f16a07f

SHA256
a0625de4bb394d7bc9d8cc61151d50e58452b5281b63f742c9055072da8ece28

SHA512
26368b6991c4c82fc932a581c836ee89feaa5479f30db097af9bc8395aa1839e07e5d308945140f95dc2ffd5c70bcbf3997ecafd4f26080438a493e9f95b311a

Download Submit
memory/304-105-0x0000000000000000-mapping.dmp

Download
memory/1184-68-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1184-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download
memory/1328-79-0x0000000000000000-mapping.dmp

Download
memory/1776-73-0x0000000000000000-mapping.dmp

Download
memory/1776-83-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1776-95-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1816-100-0x0000000000000000-mapping.dmp

Download
memory/1816-106-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1876-93-0x00000000004020A5-mapping.dmp

Download
memory/2040-81-0x0000000002E80000-0x0000000002E9A000-memory.dmp

Filesize
104KB

Download
memory/2040-78-0x0000000002E80000-0x0000000002E9A000-memory.dmp

Filesize
104KB

Download
memory/2040-70-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2040-67-0x00000000004020A5-mapping.dmp

Download
memory/2040-63-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2040-65-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2040-60-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2040-58-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2040-56-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2040-55-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2040-107-0x0000000002E80000-0x0000000002E9A000-memory.dmp

Filesize
104KB

Download