906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b

Analysis

max time kernel
145s
max time network
148s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
02/09/2023, 18:51

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General

Target

906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe
Size

1.2MB
MD5

ead467bed7ac3dfd007c16ab794ae84d
SHA1

c7b93a0c16eaf4b3fbb12cb201194700ed855ece
SHA256

906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b
SHA512

a0b6aee2c030c2183ae6871da506b12a7740bbf14d82c8b40d5f10744a889300f211b782e1379c60a5ddeb8562e85e0a64e21c6e2c91be835b1d9900e3d22a57
SSDEEP

24576:fO1LHcsboAcntImlnm5bGFZ0XkAck+ffCUyCBZY3/P:G2Acn9CkZ0X2hff/yC3G/P

Score

7^/10

upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2556	cmd.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2144-0-0x0000000000C40000-0x0000000000D78000-memory.dmp	upx
behavioral1/memory/2144-34-0x0000000000C40000-0x0000000000D78000-memory.dmp	upx
behavioral1/memory/2144-43-0x0000000000C40000-0x0000000000D78000-memory.dmp	upx
behavioral1/memory/2144-45-0x0000000000C40000-0x0000000000D78000-memory.dmp	upx

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\WindowMicrosoftNET764.log	winrshost.exe
File opened for modification	C:\Windows\WindowTerminalVaild46.log	winrshost.exe
File opened for modification	C:\Windows\WindowsShell8821.log	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe
File opened for modification	C:\Windows\WindowSystemNewUpdate102.log	winrshost.exe
File opened for modification	C:\Windows\WindowsShell240111.log	winrshost.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2600	2332	WerFault.exe	28
2604	2576	WerFault.exe	33

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe
Token: SeDebugPrivilege	2728	winrshost.exe
Token: SeIncBasePriorityPrivilege	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe
Token: SeDebugPrivilege	2728	winrshost.exe
Token: SeDebugPrivilege	2728	winrshost.exe
Token: SeDebugPrivilege	2728	winrshost.exe
Token: SeDebugPrivilege	2728	winrshost.exe
Token: SeDebugPrivilege	2728	winrshost.exe
Token: SeDebugPrivilege	2728	winrshost.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 2332	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	28
PID 2144 wrote to memory of 2332	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	28
PID 2144 wrote to memory of 2332	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	28
PID 2144 wrote to memory of 2332	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	28
PID 2144 wrote to memory of 2332	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	28
PID 2144 wrote to memory of 2332	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	28
PID 2144 wrote to memory of 2332	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	28
PID 2332 wrote to memory of 2600	2332	dccw.exe	29
PID 2332 wrote to memory of 2600	2332	dccw.exe	29
PID 2332 wrote to memory of 2600	2332	dccw.exe	29
PID 2332 wrote to memory of 2600	2332	dccw.exe	29
PID 2144 wrote to memory of 2728	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	30
PID 2144 wrote to memory of 2728	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	30
PID 2144 wrote to memory of 2728	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	30
PID 2144 wrote to memory of 2728	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	30
PID 2144 wrote to memory of 2728	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	30
PID 2144 wrote to memory of 2728	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	30
PID 2144 wrote to memory of 2728	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	30
PID 2144 wrote to memory of 2556	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	31
PID 2144 wrote to memory of 2556	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	31
PID 2144 wrote to memory of 2556	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	31
PID 2144 wrote to memory of 2556	2144	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	31
PID 2728 wrote to memory of 2576	2728	winrshost.exe	33
PID 2728 wrote to memory of 2576	2728	winrshost.exe	33
PID 2728 wrote to memory of 2576	2728	winrshost.exe	33
PID 2728 wrote to memory of 2576	2728	winrshost.exe	33
PID 2728 wrote to memory of 2576	2728	winrshost.exe	33
PID 2728 wrote to memory of 2576	2728	winrshost.exe	33
PID 2728 wrote to memory of 2576	2728	winrshost.exe	33
PID 2576 wrote to memory of 2604	2576	RegisterIEPKEYs.exe	35
PID 2576 wrote to memory of 2604	2576	RegisterIEPKEYs.exe	35
PID 2576 wrote to memory of 2604	2576	RegisterIEPKEYs.exe	35
PID 2576 wrote to memory of 2604	2576	RegisterIEPKEYs.exe	35

C:\Users\Admin\AppData\Local\Temp\906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe
"C:\Users\Admin\AppData\Local\Temp\906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Windows\SysWOW64\dccw.exe
  "C:\Windows\SysWOW64\dccw.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2332
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 192
    3⤵
    - Program crash
    PID:2600
- C:\Windows\SysWOW64\winrshost.exe
  "C:\Windows\SysWOW64\winrshost.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Windows\SysWOW64\RegisterIEPKEYs.exe
    "C:\Windows\SysWOW64\RegisterIEPKEYs.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2576
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2576 -s 168
      4⤵
      Program crash
      PID:2604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\906FEB~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\WindowSystemNewUpdate102.log

Filesize
6KB

MD5
34166686b6ce3dff6b32bd76ebcde5e9

SHA1
9e09b8b5794289796ea322a7ba38d1e7c3e02c14

SHA256
c4d096322d4b0839d21d54446a9658367e7dbf044a67ade3e1e9d667d798ec65

SHA512
eac78c3ffe39ea37e44878f0a2545c6d877f807221349e731b17a312e8bdc29fa0f0d8b3eb82b9369b04cd1fbb5927509242a5698167c7d3a26655f1197984c5

Download Submit
memory/2144-34-0x0000000000C40000-0x0000000000D78000-memory.dmp

Filesize
1.2MB

Download
memory/2144-45-0x0000000000C40000-0x0000000000D78000-memory.dmp

Filesize
1.2MB

Download
memory/2144-43-0x0000000000C40000-0x0000000000D78000-memory.dmp

Filesize
1.2MB

Download
memory/2144-0-0x0000000000C40000-0x0000000000D78000-memory.dmp

Filesize
1.2MB

Download
memory/2332-2-0x00000000002A0000-0x00000000003A8000-memory.dmp

Filesize
1.0MB

Download
memory/2332-3-0x00000000002A0000-0x00000000003A8000-memory.dmp

Filesize
1.0MB

Download
memory/2332-4-0x00000000002A0000-0x00000000003A8000-memory.dmp

Filesize
1.0MB

Download
memory/2332-6-0x00000000002A0000-0x00000000003A8000-memory.dmp

Filesize
1.0MB

Download
memory/2576-121-0x00000000001D0000-0x00000000007D1000-memory.dmp

Filesize
6.0MB

Download
memory/2728-41-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-52-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-28-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-30-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-33-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-26-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-36-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-38-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-37-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-39-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-17-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-16-0x00000000000F0000-0x000000000010B000-memory.dmp

Filesize
108KB

Download
memory/2728-15-0x00000000000F0000-0x000000000010B000-memory.dmp

Filesize
108KB

Download
memory/2728-46-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-48-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-49-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-50-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-25-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-53-0x0000000003000000-0x00000000030F9000-memory.dmp

Filesize
996KB

Download
memory/2728-62-0x0000000003000000-0x00000000030F9000-memory.dmp

Filesize
996KB

Download
memory/2728-61-0x0000000003000000-0x00000000030F9000-memory.dmp

Filesize
996KB

Download
memory/2728-64-0x0000000003000000-0x00000000030F9000-memory.dmp

Filesize
996KB

Download
memory/2728-65-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-66-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-67-0x0000000003B50000-0x0000000004020000-memory.dmp

Filesize
4.8MB

Download
memory/2728-74-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/2728-77-0x0000000002290000-0x00000000022F7000-memory.dmp

Filesize
412KB

Download
memory/2728-81-0x0000000003000000-0x00000000030F9000-memory.dmp

Filesize
996KB

Download
memory/2728-13-0x00000000000F0000-0x000000000010B000-memory.dmp

Filesize
108KB

Download
memory/2728-150-0x0000000003000000-0x00000000030F9000-memory.dmp

Filesize
996KB

Download
memory/2728-11-0x00000000001C0000-0x00000000002C8000-memory.dmp

Filesize
1.0MB

Download
memory/2728-185-0x00000000095F0000-0x0000000009973000-memory.dmp

Filesize
3.5MB

Download
memory/2728-202-0x00000000095F0000-0x0000000009973000-memory.dmp

Filesize
3.5MB

Download