7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9

General

Target

7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe
Size

330KB
MD5

764772ca64e7b13b950a836fd0929d02
SHA1

705776f233dba5d236a09da19f0947c3c20c6d56
SHA256

7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9
SHA512

1f2558a68bd7a77aa1c7ec35493fb1fff4dcf1085158bb3014a1a514039b4e7c5df86c12f305336efeb5639f862e177b1e2d7efbc9a11b7949e77a5a75e52235
SSDEEP

6144:7YjQLUDaUgfygVpaUhxt2U+e029uBVUSFa8Bt2RsDT3XorSvVnBvVE69+lg:7XUDa5fhPa4EdqkVUSPdorS9BtE69Mg

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1128	system32.exe
2020	system32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/864-55-0x0000000000400000-0x00000000004FA000-memory.dmp	upx
behavioral1/memory/864-57-0x0000000000400000-0x00000000004FA000-memory.dmp	upx
behavioral1/memory/864-61-0x0000000000400000-0x00000000004FA000-memory.dmp	upx
behavioral1/memory/864-62-0x0000000000400000-0x00000000004FA000-memory.dmp	upx
behavioral1/memory/864-63-0x0000000000400000-0x00000000004FA000-memory.dmp	upx
behavioral1/memory/864-79-0x0000000000400000-0x00000000004FA000-memory.dmp	upx
behavioral1/memory/2020-82-0x0000000000400000-0x00000000004FA000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Data Serivce = "system32.exe"	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1504 set thread context of 864	1504	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	28
PID 1128 set thread context of 2020	1128	system32.exe	30

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32.exe	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe
File opened for modification	C:\Windows\system32.exe	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 864	1504	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	28
PID 1504 wrote to memory of 864	1504	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	28
PID 1504 wrote to memory of 864	1504	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	28
PID 1504 wrote to memory of 864	1504	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	28
PID 1504 wrote to memory of 864	1504	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	28
PID 1504 wrote to memory of 864	1504	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	28
PID 1504 wrote to memory of 864	1504	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	28
PID 1504 wrote to memory of 864	1504	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	28
PID 864 wrote to memory of 1128	864	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	29
PID 864 wrote to memory of 1128	864	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	29
PID 864 wrote to memory of 1128	864	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	29
PID 864 wrote to memory of 1128	864	7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe	29
PID 1128 wrote to memory of 2020	1128	system32.exe	30
PID 1128 wrote to memory of 2020	1128	system32.exe	30
PID 1128 wrote to memory of 2020	1128	system32.exe	30
PID 1128 wrote to memory of 2020	1128	system32.exe	30
PID 1128 wrote to memory of 2020	1128	system32.exe	30
PID 1128 wrote to memory of 2020	1128	system32.exe	30
PID 1128 wrote to memory of 2020	1128	system32.exe	30
PID 1128 wrote to memory of 2020	1128	system32.exe	30

C:\Users\Admin\AppData\Local\Temp\7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe
"C:\Users\Admin\AppData\Local\Temp\7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1504
- C:\Users\Admin\AppData\Local\Temp\7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe
  "C:\Users\Admin\AppData\Local\Temp\7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:864
- - C:\Windows\system32.exe
    "C:\Windows\system32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1128
  - - C:\Windows\system32.exe
      "C:\Windows\system32.exe"
      4⤵
      Executes dropped EXE
      PID:2020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\system32.exe

Filesize
330KB

MD5
764772ca64e7b13b950a836fd0929d02

SHA1
705776f233dba5d236a09da19f0947c3c20c6d56

SHA256
7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9

SHA512
1f2558a68bd7a77aa1c7ec35493fb1fff4dcf1085158bb3014a1a514039b4e7c5df86c12f305336efeb5639f862e177b1e2d7efbc9a11b7949e77a5a75e52235

Download Submit
C:\Windows\system32.exe

Filesize
330KB

MD5
764772ca64e7b13b950a836fd0929d02

SHA1
705776f233dba5d236a09da19f0947c3c20c6d56

SHA256
7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9

SHA512
1f2558a68bd7a77aa1c7ec35493fb1fff4dcf1085158bb3014a1a514039b4e7c5df86c12f305336efeb5639f862e177b1e2d7efbc9a11b7949e77a5a75e52235

Download Submit
C:\Windows\system32.exe

Filesize
330KB

MD5
764772ca64e7b13b950a836fd0929d02

SHA1
705776f233dba5d236a09da19f0947c3c20c6d56

SHA256
7f157376267eef65c918cb71945bcd8baf23715fc22815d2de3457c6e024d3a9

SHA512
1f2558a68bd7a77aa1c7ec35493fb1fff4dcf1085158bb3014a1a514039b4e7c5df86c12f305336efeb5639f862e177b1e2d7efbc9a11b7949e77a5a75e52235

Download Submit
memory/864-64-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/864-81-0x0000000010000000-0x0000000010069000-memory.dmp

Filesize
420KB

Download
memory/864-62-0x0000000000400000-0x00000000004FA000-memory.dmp

Filesize
1000KB

Download
memory/864-63-0x0000000000400000-0x00000000004FA000-memory.dmp

Filesize
1000KB

Download
memory/864-54-0x0000000000400000-0x00000000004FA000-memory.dmp

Filesize
1000KB

Download
memory/864-80-0x0000000002910000-0x0000000002979000-memory.dmp

Filesize
420KB

Download
memory/864-61-0x0000000000400000-0x00000000004FA000-memory.dmp

Filesize
1000KB

Download
memory/864-57-0x0000000000400000-0x00000000004FA000-memory.dmp

Filesize
1000KB

Download
memory/864-79-0x0000000000400000-0x00000000004FA000-memory.dmp

Filesize
1000KB

Download
memory/864-55-0x0000000000400000-0x00000000004FA000-memory.dmp

Filesize
1000KB

Download
memory/1504-60-0x0000000010000000-0x0000000010069000-memory.dmp

Filesize
420KB

Download
memory/2020-82-0x0000000000400000-0x00000000004FA000-memory.dmp

Filesize
1000KB

Download

Analysis

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