933d779247ea0959850d1c7109bc90681dd8fa1ed5f58fdba03b9c6e2f32cfff

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
11/01/2024, 16:30

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General

Target

5404e0eecb833b541bb8c2cb93f677ff.exe
Size

234KB
MD5

5404e0eecb833b541bb8c2cb93f677ff
SHA1

c590c06a8e755346d3986b921b287c292733e2be
SHA256

933d779247ea0959850d1c7109bc90681dd8fa1ed5f58fdba03b9c6e2f32cfff
SHA512

ba82b9691c99a060d827fe48026f64771c880545b5164f0657817935e0fdbac86fb82e8a36b7a77a009d436571a2cb41a6977c15297be77352db672401e6177a
SSDEEP

6144:+vdd1DkofdVGzU0bKJgkycch60n9z3xiBR5lVIeqvoSS:+v1zdYcgktcdBiBRpFqvoSS

Score

7^/10

persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2160	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	yzci.exe

Loads dropped DLL 2 IoCs

pid	Process
1676	5404e0eecb833b541bb8c2cb93f677ff.exe
1676	5404e0eecb833b541bb8c2cb93f677ff.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1676-0-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral1/files/0x000d000000012323-11.dat	upx
behavioral1/memory/1676-13-0x0000000000360000-0x00000000003C6000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\{D315C75A-7061-C6CA-A1FE-023088B271DB} = "C:\\Users\\Admin\\AppData\\Roaming\\Apitha\\yzci.exe"	yzci.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1676 set thread context of 2160	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	30

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	5404e0eecb833b541bb8c2cb93f677ff.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Privacy	5404e0eecb833b541bb8c2cb93f677ff.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Local Folders\Inbox\54214AFD-00000001.eml:OECustomProperty	WinMail.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe
2712	yzci.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1676	5404e0eecb833b541bb8c2cb93f677ff.exe
Token: SeSecurityPrivilege	1676	5404e0eecb833b541bb8c2cb93f677ff.exe
Token: SeSecurityPrivilege	1676	5404e0eecb833b541bb8c2cb93f677ff.exe
Token: SeManageVolumePrivilege	1076	WinMail.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1076	WinMail.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1076	WinMail.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1076	WinMail.exe

Suspicious use of WriteProcessMemory 53 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 2712	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	28
PID 1676 wrote to memory of 2712	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	28
PID 1676 wrote to memory of 2712	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	28
PID 1676 wrote to memory of 2712	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	28
PID 2712 wrote to memory of 1088	2712	yzci.exe	19
PID 2712 wrote to memory of 1088	2712	yzci.exe	19
PID 2712 wrote to memory of 1088	2712	yzci.exe	19
PID 2712 wrote to memory of 1088	2712	yzci.exe	19
PID 2712 wrote to memory of 1088	2712	yzci.exe	19
PID 2712 wrote to memory of 1172	2712	yzci.exe	17
PID 2712 wrote to memory of 1172	2712	yzci.exe	17
PID 2712 wrote to memory of 1172	2712	yzci.exe	17
PID 2712 wrote to memory of 1172	2712	yzci.exe	17
PID 2712 wrote to memory of 1172	2712	yzci.exe	17
PID 2712 wrote to memory of 1200	2712	yzci.exe	11
PID 2712 wrote to memory of 1200	2712	yzci.exe	11
PID 2712 wrote to memory of 1200	2712	yzci.exe	11
PID 2712 wrote to memory of 1200	2712	yzci.exe	11
PID 2712 wrote to memory of 1200	2712	yzci.exe	11
PID 2712 wrote to memory of 772	2712	yzci.exe	15
PID 2712 wrote to memory of 772	2712	yzci.exe	15
PID 2712 wrote to memory of 772	2712	yzci.exe	15
PID 2712 wrote to memory of 772	2712	yzci.exe	15
PID 2712 wrote to memory of 772	2712	yzci.exe	15
PID 2712 wrote to memory of 1676	2712	yzci.exe	27
PID 2712 wrote to memory of 1676	2712	yzci.exe	27
PID 2712 wrote to memory of 1676	2712	yzci.exe	27
PID 2712 wrote to memory of 1676	2712	yzci.exe	27
PID 2712 wrote to memory of 1676	2712	yzci.exe	27
PID 1676 wrote to memory of 2160	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	30
PID 1676 wrote to memory of 2160	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	30
PID 1676 wrote to memory of 2160	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	30
PID 1676 wrote to memory of 2160	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	30
PID 1676 wrote to memory of 2160	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	30
PID 1676 wrote to memory of 2160	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	30
PID 1676 wrote to memory of 2160	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	30
PID 1676 wrote to memory of 2160	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	30
PID 1676 wrote to memory of 2160	1676	5404e0eecb833b541bb8c2cb93f677ff.exe	30
PID 2712 wrote to memory of 2960	2712	yzci.exe	31
PID 2712 wrote to memory of 2960	2712	yzci.exe	31
PID 2712 wrote to memory of 2960	2712	yzci.exe	31
PID 2712 wrote to memory of 2960	2712	yzci.exe	31
PID 2712 wrote to memory of 2960	2712	yzci.exe	31
PID 2712 wrote to memory of 2064	2712	yzci.exe	33
PID 2712 wrote to memory of 2064	2712	yzci.exe	33
PID 2712 wrote to memory of 2064	2712	yzci.exe	33
PID 2712 wrote to memory of 2064	2712	yzci.exe	33
PID 2712 wrote to memory of 2064	2712	yzci.exe	33
PID 2712 wrote to memory of 1164	2712	yzci.exe	34
PID 2712 wrote to memory of 1164	2712	yzci.exe	34
PID 2712 wrote to memory of 1164	2712	yzci.exe	34
PID 2712 wrote to memory of 1164	2712	yzci.exe	34
PID 2712 wrote to memory of 1164	2712	yzci.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\5404e0eecb833b541bb8c2cb93f677ff.exe
  "C:\Users\Admin\AppData\Local\Temp\5404e0eecb833b541bb8c2cb93f677ff.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1676
- - C:\Users\Admin\AppData\Roaming\Apitha\yzci.exe
    "C:\Users\Admin\AppData\Roaming\Apitha\yzci.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2712
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpfc254736.bat"
    3⤵
    - Deletes itself
    PID:2160

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:772

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1172

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1088

C:\Program Files\Windows Mail\WinMail.exe
"C:\Program Files\Windows Mail\WinMail.exe" -Embedding
1⤵
- NTFS ADS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1076

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:2960

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:2064

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1164

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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\Microsoft\Windows Mail\edb.log

Filesize
2.0MB

MD5
40594d2b73227e2bf7c0fd4c56b9eb7f

SHA1
f8a6f4678b16b820bd34d5f3408ae3d044955610

SHA256
7209da40dcd843ddb906fdf485b6d956f4c16b8d6a03c0255559cd8a7f948ad4

SHA512
04f21cf99bcee274727cc744a9da7bcccc6cc7e476a4cb60436b34b146cd4fd20b75f234a1d9375cdbb95f6c977933662d830d2351b6cc943b7653a037f62025

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpfc254736.bat

Filesize
243B

MD5
6c1e5a5266ee9f5961185ba1c14f4974

SHA1
b136fe584503f885ef19f4ca68aa6df2aa7625e9

SHA256
e3c48847701689068d54940c2bc0a032a49c18f5c1d3afd2eee720c3671f33c8

SHA512
f33017602b02d1f8fb7b32cf04759bd7837b8eebf549a7f92d729774eb51b76fa8d457a11cb733048a6c8992bfc261c4a81c78955b086d1f83819c423bd26b90

Download Submit
C:\Users\Admin\AppData\Roaming\Kood\ifyl.quk

Filesize
388B

MD5
820a0f476cd07ea2a2fa86f239d460eb

SHA1
b244ec7a8a2619a6cd9e753bc04ee79d7809ee6d

SHA256
77e6221e94cb921c312647ed59dfc28bb3e477c41225e5a63c52fd7eee946d9d

SHA512
98669557f941a91330552e747c53b7817d3433da3487f2d51a94bab26d8e2fab1cc09ef29930650db873feeb5e4ec378dcb0cde76bc3980c2f62ca77793eac33

Download Submit
\Users\Admin\AppData\Roaming\Apitha\yzci.exe

Filesize
234KB

MD5
cefbceecb5f1a8fc944c10be6631a7ad

SHA1
eab4b29a752e556f4b0fbb7d50449eccf1467a9a

SHA256
7b29f3de84802c6dc7336f19294b09a605280d70e35ffa8051760e2020ed7fd6

SHA512
51e0325391bb3284f3a0e6bd3c4f1916001f4b3ede37135e3d9b47bacd110db131a8a0b5b95efee28bf61f0bf419137ce7c022979231f7606d938c9334f38d21

Download Submit
memory/772-49-0x0000000001C80000-0x0000000001CAF000-memory.dmp

Filesize
188KB

Download
memory/772-55-0x0000000001C80000-0x0000000001CAF000-memory.dmp

Filesize
188KB

Download
memory/772-53-0x0000000001C80000-0x0000000001CAF000-memory.dmp

Filesize
188KB

Download
memory/772-51-0x0000000001C80000-0x0000000001CAF000-memory.dmp

Filesize
188KB

Download
memory/1088-30-0x00000000004F0000-0x000000000051F000-memory.dmp

Filesize
188KB

Download
memory/1088-28-0x00000000004F0000-0x000000000051F000-memory.dmp

Filesize
188KB

Download
memory/1088-29-0x00000000004F0000-0x000000000051F000-memory.dmp

Filesize
188KB

Download
memory/1088-31-0x00000000004F0000-0x000000000051F000-memory.dmp

Filesize
188KB

Download
memory/1088-32-0x00000000004F0000-0x000000000051F000-memory.dmp

Filesize
188KB

Download
memory/1172-34-0x0000000000140000-0x000000000016F000-memory.dmp

Filesize
188KB

Download
memory/1172-35-0x0000000000140000-0x000000000016F000-memory.dmp

Filesize
188KB

Download
memory/1172-36-0x0000000000140000-0x000000000016F000-memory.dmp

Filesize
188KB

Download
memory/1172-37-0x0000000000140000-0x000000000016F000-memory.dmp

Filesize
188KB

Download
memory/1200-42-0x00000000024D0000-0x00000000024FF000-memory.dmp

Filesize
188KB

Download
memory/1200-46-0x00000000024D0000-0x00000000024FF000-memory.dmp

Filesize
188KB

Download
memory/1200-44-0x00000000024D0000-0x00000000024FF000-memory.dmp

Filesize
188KB

Download
memory/1200-40-0x00000000024D0000-0x00000000024FF000-memory.dmp

Filesize
188KB

Download
memory/1676-81-0x0000000077E90000-0x0000000077E91000-memory.dmp

Filesize
4KB

Download
memory/1676-60-0x0000000000360000-0x000000000038F000-memory.dmp

Filesize
188KB

Download
memory/1676-1-0x0000000000220000-0x0000000000234000-memory.dmp

Filesize
80KB

Download
memory/1676-13-0x0000000000360000-0x00000000003C6000-memory.dmp

Filesize
408KB

Download
memory/1676-7-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1676-5-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1676-4-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1676-72-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1676-317-0x0000000000360000-0x000000000038F000-memory.dmp

Filesize
188KB

Download
memory/1676-79-0x0000000000360000-0x000000000038F000-memory.dmp

Filesize
188KB

Download
memory/1676-18-0x0000000000360000-0x00000000003C6000-memory.dmp

Filesize
408KB

Download
memory/1676-234-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1676-78-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1676-316-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1676-74-0x0000000000360000-0x000000000038F000-memory.dmp

Filesize
188KB

Download
memory/1676-70-0x0000000000360000-0x000000000038F000-memory.dmp

Filesize
188KB

Download
memory/1676-3-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1676-68-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1676-66-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1676-63-0x0000000000360000-0x000000000038F000-memory.dmp

Filesize
188KB

Download
memory/1676-62-0x0000000000360000-0x000000000038F000-memory.dmp

Filesize
188KB

Download
memory/1676-61-0x0000000000360000-0x000000000038F000-memory.dmp

Filesize
188KB

Download
memory/1676-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1676-59-0x0000000000360000-0x000000000038F000-memory.dmp

Filesize
188KB

Download
memory/1676-2-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2160-320-0x0000000000050000-0x000000000007F000-memory.dmp

Filesize
188KB

Download
memory/2160-322-0x0000000077E90000-0x0000000077E91000-memory.dmp

Filesize
4KB

Download
memory/2160-503-0x0000000000050000-0x000000000007F000-memory.dmp

Filesize
188KB

Download
memory/2712-77-0x0000000001F00000-0x0000000001F66000-memory.dmp

Filesize
408KB

Download
memory/2712-75-0x0000000001F00000-0x0000000001F66000-memory.dmp

Filesize
408KB

Download
memory/2712-25-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2712-515-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download