a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528

Analysis

max time kernel
233s
max time network
312s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
02/12/2022, 23:34

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General

Target

a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe
Size

6KB
MD5

8b3525a7abe5d1a226730c4aeb73526c
SHA1

e5f375e318eef59fff41ddeca99c3897fb05544e
SHA256

a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528
SHA512

82a7de5239de78573037099a1135bc81d5fe0d3b1800c81fae0ba4bb5b88a0f95f0bd23f04d40135ffee4806031fbce9e0a1173dd80632c8d49f3742cd99b210
SSDEEP

96:8ZKmoW3LVeBHQGn6SZUqTNms7s8PFsBVWJpbBHa0roOQL2ADnYQghbI4:8s2bwHQibcsQEhfFa0rML/Ahc

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system\\conime.exe"	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe

Executes dropped EXE 1 IoCs

pid	Process
1772	conime.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1164-55-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/files/0x000b0000000122f1-57.dat	upx
behavioral1/files/0x000b0000000122f1-60.dat	upx
behavioral1/files/0x000b0000000122f1-58.dat	upx
behavioral1/memory/1772-63-0x0000000000400000-0x0000000000408000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
520	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1164	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe
1164	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\conime.exe	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe
File created	C:\Windows\system\conime.exe	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe
1772	conime.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1772	conime.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 520	1164	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe	28
PID 1164 wrote to memory of 520	1164	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe	28
PID 1164 wrote to memory of 520	1164	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe	28
PID 1164 wrote to memory of 520	1164	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe	28
PID 1164 wrote to memory of 1772	1164	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe	30
PID 1164 wrote to memory of 1772	1164	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe	30
PID 1164 wrote to memory of 1772	1164	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe	30
PID 1164 wrote to memory of 1772	1164	a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe	30

C:\Users\Admin\AppData\Local\Temp\a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe
"C:\Users\Admin\AppData\Local\Temp\a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Windows\SysWOW64\cmd.exe
  cmd /c c:\test.bat
  2⤵
  - Deletes itself
  PID:520
- C:\Windows\system\conime.exe
  "C:\Windows\system\conime.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1772

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\system\conime.exe

Filesize
6KB

MD5
8b3525a7abe5d1a226730c4aeb73526c

SHA1
e5f375e318eef59fff41ddeca99c3897fb05544e

SHA256
a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528

SHA512
82a7de5239de78573037099a1135bc81d5fe0d3b1800c81fae0ba4bb5b88a0f95f0bd23f04d40135ffee4806031fbce9e0a1173dd80632c8d49f3742cd99b210

Download Submit
\??\c:\test.bat

Filesize
249B

MD5
d64e0fcf3736cd91c9240d168c43d9a6

SHA1
ec499509d39e246354092d728bc9ecd981d1bbd5

SHA256
f322146ebfffab7d257c38e3ef5768cf859ac592bfa9229ad9de0a698f877a59

SHA512
ecdf2f7c2e5a8840c8db1a8840803daa472412c488d5cbfb8e93bf7be5fcfed59a53d37b61aa8c65ff301c89715e4f61d19f964ef47cadf8e677f1d1de3cd8b4

Download Submit
\Windows\system\conime.exe

Filesize
6KB

MD5
8b3525a7abe5d1a226730c4aeb73526c

SHA1
e5f375e318eef59fff41ddeca99c3897fb05544e

SHA256
a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528

SHA512
82a7de5239de78573037099a1135bc81d5fe0d3b1800c81fae0ba4bb5b88a0f95f0bd23f04d40135ffee4806031fbce9e0a1173dd80632c8d49f3742cd99b210

Download Submit
\Windows\system\conime.exe

Filesize
6KB

MD5
8b3525a7abe5d1a226730c4aeb73526c

SHA1
e5f375e318eef59fff41ddeca99c3897fb05544e

SHA256
a3282d2d782635c0a83c86b082dbdff29ac24f3c9e5d6e80e3f2c0e76bcdc528

SHA512
82a7de5239de78573037099a1135bc81d5fe0d3b1800c81fae0ba4bb5b88a0f95f0bd23f04d40135ffee4806031fbce9e0a1173dd80632c8d49f3742cd99b210

Download Submit
memory/1164-54-0x0000000076931000-0x0000000076933000-memory.dmp

Filesize
8KB

Download
memory/1164-55-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1772-63-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download