96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e

Analysis

max time kernel
69s
max time network
70s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
19/10/2022, 22:13

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General

Target

96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe
Size

109KB
MD5

91bdfdea01264c64ef11b04ea11487e0
SHA1

b473dddfe57f513c296b31ac435e63c1a2d8055b
SHA256

96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e
SHA512

ff2a66fb40f51b6cc3348dd4a00db9aadc80aca76452eba556b8e564d6a1c3a644c907375b3c7460aae1ad3032f830a5a6d132286d384d487d2de09bcf1d0a6d
SSDEEP

1536:ObAmatlbHUZU/lL0w07s/4TbgvHktE3nkGxPbodJL96HZ2QxOyY:ObAmatlYZJw01bMFw0Z2COV

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2036	umbunmhkuf.pre
1988	umbunmhkuf.pre

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1456-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1456-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1456-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1456-62-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1456-61-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1456-66-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1988-87-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
1184	ctfmon.exe

Loads dropped DLL 3 IoCs

pid	Process
1184	ctfmon.exe
1184	ctfmon.exe
2036	umbunmhkuf.pre

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\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\mytbyxyz = "C:\\Users\\Admin\\Hboffvre\\yfjkkthyxyz.exe"	explorer.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 904 set thread context of 1456	904	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	27
PID 2036 set thread context of 1988	2036	umbunmhkuf.pre	30

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 1456	904	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	27
PID 904 wrote to memory of 1456	904	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	27
PID 904 wrote to memory of 1456	904	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	27
PID 904 wrote to memory of 1456	904	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	27
PID 904 wrote to memory of 1456	904	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	27
PID 904 wrote to memory of 1456	904	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	27
PID 904 wrote to memory of 1456	904	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	27
PID 904 wrote to memory of 1456	904	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	27
PID 1456 wrote to memory of 1184	1456	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	28
PID 1456 wrote to memory of 1184	1456	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	28
PID 1456 wrote to memory of 1184	1456	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	28
PID 1456 wrote to memory of 1184	1456	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	28
PID 1456 wrote to memory of 1184	1456	96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe	28
PID 1184 wrote to memory of 2036	1184	ctfmon.exe	29
PID 1184 wrote to memory of 2036	1184	ctfmon.exe	29
PID 1184 wrote to memory of 2036	1184	ctfmon.exe	29
PID 1184 wrote to memory of 2036	1184	ctfmon.exe	29
PID 2036 wrote to memory of 1988	2036	umbunmhkuf.pre	30
PID 2036 wrote to memory of 1988	2036	umbunmhkuf.pre	30
PID 2036 wrote to memory of 1988	2036	umbunmhkuf.pre	30
PID 2036 wrote to memory of 1988	2036	umbunmhkuf.pre	30
PID 2036 wrote to memory of 1988	2036	umbunmhkuf.pre	30
PID 2036 wrote to memory of 1988	2036	umbunmhkuf.pre	30
PID 2036 wrote to memory of 1988	2036	umbunmhkuf.pre	30
PID 2036 wrote to memory of 1988	2036	umbunmhkuf.pre	30
PID 1988 wrote to memory of 1212	1988	umbunmhkuf.pre	31
PID 1988 wrote to memory of 1212	1988	umbunmhkuf.pre	31
PID 1988 wrote to memory of 1212	1988	umbunmhkuf.pre	31
PID 1988 wrote to memory of 1212	1988	umbunmhkuf.pre	31
PID 1988 wrote to memory of 1212	1988	umbunmhkuf.pre	31

C:\Users\Admin\AppData\Local\Temp\96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe
"C:\Users\Admin\AppData\Local\Temp\96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:904
- C:\Users\Admin\AppData\Local\Temp\96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe
  "C:\Users\Admin\AppData\Local\Temp\96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1456
- - C:\Windows\SysWOW64\ctfmon.exe
    ctfmon.exe
    3⤵
    - Deletes itself
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:1184
  - - C:\Users\Admin\AppData\Local\Temp\umbunmhkuf.pre
      C:\Users\Admin\AppData\Local\Temp\umbunmhkuf.pre
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:2036
    - - C:\Users\Admin\AppData\Local\Temp\umbunmhkuf.pre
        
        C:\Users\Admin\AppData\Local\Temp\umbunmhkuf.pre
        5⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:1988
      - C:\Windows\SysWOW64\explorer.exe
        
        explorer.exe
        6⤵
        Adds Run key to start application
        
        PID:1212

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\umbunmhkuf.pre

Filesize
109KB

MD5
91bdfdea01264c64ef11b04ea11487e0

SHA1
b473dddfe57f513c296b31ac435e63c1a2d8055b

SHA256
96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e

SHA512
ff2a66fb40f51b6cc3348dd4a00db9aadc80aca76452eba556b8e564d6a1c3a644c907375b3c7460aae1ad3032f830a5a6d132286d384d487d2de09bcf1d0a6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\umbunmhkuf.pre

Filesize
109KB

MD5
91bdfdea01264c64ef11b04ea11487e0

SHA1
b473dddfe57f513c296b31ac435e63c1a2d8055b

SHA256
96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e

SHA512
ff2a66fb40f51b6cc3348dd4a00db9aadc80aca76452eba556b8e564d6a1c3a644c907375b3c7460aae1ad3032f830a5a6d132286d384d487d2de09bcf1d0a6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\umbunmhkuf.pre

Filesize
109KB

MD5
91bdfdea01264c64ef11b04ea11487e0

SHA1
b473dddfe57f513c296b31ac435e63c1a2d8055b

SHA256
96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e

SHA512
ff2a66fb40f51b6cc3348dd4a00db9aadc80aca76452eba556b8e564d6a1c3a644c907375b3c7460aae1ad3032f830a5a6d132286d384d487d2de09bcf1d0a6d

Download Submit
\Users\Admin\AppData\Local\Temp\umbunmhkuf.pre

Filesize
109KB

MD5
91bdfdea01264c64ef11b04ea11487e0

SHA1
b473dddfe57f513c296b31ac435e63c1a2d8055b

SHA256
96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e

SHA512
ff2a66fb40f51b6cc3348dd4a00db9aadc80aca76452eba556b8e564d6a1c3a644c907375b3c7460aae1ad3032f830a5a6d132286d384d487d2de09bcf1d0a6d

Download Submit
\Users\Admin\AppData\Local\Temp\umbunmhkuf.pre

Filesize
109KB

MD5
91bdfdea01264c64ef11b04ea11487e0

SHA1
b473dddfe57f513c296b31ac435e63c1a2d8055b

SHA256
96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e

SHA512
ff2a66fb40f51b6cc3348dd4a00db9aadc80aca76452eba556b8e564d6a1c3a644c907375b3c7460aae1ad3032f830a5a6d132286d384d487d2de09bcf1d0a6d

Download Submit
\Users\Admin\AppData\Local\Temp\umbunmhkuf.pre

Filesize
109KB

MD5
91bdfdea01264c64ef11b04ea11487e0

SHA1
b473dddfe57f513c296b31ac435e63c1a2d8055b

SHA256
96319c25b90c8aafa3ad41b598870c46b38dedcb2eb41b1921c84d830db0419e

SHA512
ff2a66fb40f51b6cc3348dd4a00db9aadc80aca76452eba556b8e564d6a1c3a644c907375b3c7460aae1ad3032f830a5a6d132286d384d487d2de09bcf1d0a6d

Download Submit
memory/1184-67-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

Filesize
56KB

Download
memory/1184-63-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

Filesize
56KB

Download
memory/1212-91-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

Filesize
56KB

Download
memory/1212-90-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

Filesize
56KB

Download
memory/1212-89-0x0000000074C51000-0x0000000074C53000-memory.dmp

Filesize
8KB

Download
memory/1212-88-0x0000000075021000-0x0000000075023000-memory.dmp

Filesize
8KB

Download
memory/1456-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1456-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1456-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1456-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1456-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1456-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1456-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1988-87-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download