37c75e9276f33dd445d4cf3b8c4a8450e014f84c317c58a1fc93835280b195e4

General

Target

d62d82eccae9cae541c55262b4fe3a9c.exe
Size

251KB
MD5

d62d82eccae9cae541c55262b4fe3a9c
SHA1

9d4e8e4ea2bab28949149634c1c072b8e4686d7e
SHA256

37c75e9276f33dd445d4cf3b8c4a8450e014f84c317c58a1fc93835280b195e4
SHA512

efd27d504f00c889a141ae514d4544c9d20760faa9fa6010c3e8dd729dead716d80459ba36aa95a68e11d316869ef346a6feb22b8b5ce137dd6a0dbecd0f64f3
SSDEEP

6144:HRJ7FvZHQ4X/thAv0i6gd+oMNRWESkW/RxgzMk3rn:HH04vEv0gUocRfSRpx6z

Score

7^/10

upx

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\explorer.exe	lsass.exe

Executes dropped EXE 2 IoCs

pid	Process
3060	lsass.exe
2548	lsass.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2360-3-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral1/memory/2360-5-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral1/memory/2360-6-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral1/memory/2360-7-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral1/memory/2360-8-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral1/memory/2360-21-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral1/memory/2548-27-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral1/memory/2548-28-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral1/memory/2548-29-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral1/memory/2548-33-0x0000000000400000-0x0000000000498000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\4DFlowerBox.scr	lsass.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1444 set thread context of 2360	1444	d62d82eccae9cae541c55262b4fe3a9c.exe	28
PID 3060 set thread context of 2548	3060	lsass.exe	30

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\lsass.exe	d62d82eccae9cae541c55262b4fe3a9c.exe
File opened for modification	C:\Windows\lsass.exe	d62d82eccae9cae541c55262b4fe3a9c.exe
File opened for modification	C:\Windows\lsass.exe	lsass.exe

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

System Information Discovery
T1082
Runs net.exe

Suspicious use of SetWindowsHookEx 11 IoCs

pid	Process
2360	d62d82eccae9cae541c55262b4fe3a9c.exe
2548	lsass.exe
2548	lsass.exe
2548	lsass.exe
2548	lsass.exe
2548	lsass.exe
2548	lsass.exe
2548	lsass.exe
2548	lsass.exe
2548	lsass.exe
2548	lsass.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1444 wrote to memory of 2360	1444	d62d82eccae9cae541c55262b4fe3a9c.exe	28
PID 1444 wrote to memory of 2360	1444	d62d82eccae9cae541c55262b4fe3a9c.exe	28
PID 1444 wrote to memory of 2360	1444	d62d82eccae9cae541c55262b4fe3a9c.exe	28
PID 1444 wrote to memory of 2360	1444	d62d82eccae9cae541c55262b4fe3a9c.exe	28
PID 1444 wrote to memory of 2360	1444	d62d82eccae9cae541c55262b4fe3a9c.exe	28
PID 1444 wrote to memory of 2360	1444	d62d82eccae9cae541c55262b4fe3a9c.exe	28
PID 2360 wrote to memory of 3060	2360	d62d82eccae9cae541c55262b4fe3a9c.exe	29
PID 2360 wrote to memory of 3060	2360	d62d82eccae9cae541c55262b4fe3a9c.exe	29
PID 2360 wrote to memory of 3060	2360	d62d82eccae9cae541c55262b4fe3a9c.exe	29
PID 2360 wrote to memory of 3060	2360	d62d82eccae9cae541c55262b4fe3a9c.exe	29
PID 3060 wrote to memory of 2548	3060	lsass.exe	30
PID 3060 wrote to memory of 2548	3060	lsass.exe	30
PID 3060 wrote to memory of 2548	3060	lsass.exe	30
PID 3060 wrote to memory of 2548	3060	lsass.exe	30
PID 3060 wrote to memory of 2548	3060	lsass.exe	30
PID 3060 wrote to memory of 2548	3060	lsass.exe	30
PID 2548 wrote to memory of 3020	2548	lsass.exe	31
PID 2548 wrote to memory of 3020	2548	lsass.exe	31
PID 2548 wrote to memory of 3020	2548	lsass.exe	31
PID 2548 wrote to memory of 3020	2548	lsass.exe	31
PID 3020 wrote to memory of 2604	3020	net.exe	33
PID 3020 wrote to memory of 2604	3020	net.exe	33
PID 3020 wrote to memory of 2604	3020	net.exe	33
PID 3020 wrote to memory of 2604	3020	net.exe	33

C:\Users\Admin\AppData\Local\Temp\d62d82eccae9cae541c55262b4fe3a9c.exe
"C:\Users\Admin\AppData\Local\Temp\d62d82eccae9cae541c55262b4fe3a9c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1444
- C:\Users\Admin\AppData\Local\Temp\d62d82eccae9cae541c55262b4fe3a9c.exe
  C:\Users\Admin\AppData\Local\Temp\d62d82eccae9cae541c55262b4fe3a9c.exe
  2⤵
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2360
- - C:\Windows\lsass.exe
    "C:\Windows\lsass.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3060
  - - C:\Windows\lsass.exe
      C:\Windows\lsass.exe
      4⤵
      Drops startup file
      Executes dropped EXE
      Drops file in System32 directory
      Drops file in Windows directory
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2548
    - - C:\Windows\SysWOW64\net.exe
        
        "C:\Windows\System32\net.exe" stop sharedaccess
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3020
      - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 stop sharedaccess
        6⤵
        
        PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\lsass.exe

Filesize
251KB

MD5
d62d82eccae9cae541c55262b4fe3a9c

SHA1
9d4e8e4ea2bab28949149634c1c072b8e4686d7e

SHA256
37c75e9276f33dd445d4cf3b8c4a8450e014f84c317c58a1fc93835280b195e4

SHA512
efd27d504f00c889a141ae514d4544c9d20760faa9fa6010c3e8dd729dead716d80459ba36aa95a68e11d316869ef346a6feb22b8b5ce137dd6a0dbecd0f64f3

Download Submit
memory/1444-4-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2360-9-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2360-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2360-3-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2360-6-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2360-7-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2360-8-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2360-0-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2360-5-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2360-21-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2548-27-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2548-28-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2548-29-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2548-30-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2548-33-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2548-34-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/3060-25-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

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