a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0

Analysis

max time kernel
170s
max time network
149s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
21/11/2022, 23:21

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe
Size

993KB
MD5

c62fd2c527cf99a0bd9b5974adf6bce8
SHA1

3daf381c15b9c16211b33f505f866d244f1de7f7
SHA256

a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0
SHA512

3520af2c863b7427eb6ac54ff92c5eb374d2f14bb3019fccac0eb1cf8570f33cee7881ec341b0a6412b5676aa21a090bfa073c92d602f7655d01419c1d96c659
SSDEEP

24576:z4lavt0LkLL9IMixoEgeau1wYQrq9MmCS:Gkwkn9IMHeaumYWaPCS

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1980	696.exe
1204	kuem.exe

Loads dropped DLL 6 IoCs

pid	Process
2032	a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe
2032	a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe
2032	a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe
2032	a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe
1980	696.exe
1980	696.exe

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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\Currentversion\Run	kuem.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\{D366A2A4-4396-ACFF-8C53-348786E66251} = "C:\\Users\\Admin\\AppData\\Roaming\\Peef\\kuem.exe"	kuem.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1980 set thread context of 1976	1980	696.exe	31

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Privacy	696.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	696.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Local Folders\Inbox\39B2030E-00000001.eml:OECustomProperty	WinMail.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe
1204	kuem.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1980	696.exe
Token: SeSecurityPrivilege	1980	696.exe
Token: SeSecurityPrivilege	1980	696.exe
Token: SeManageVolumePrivilege	1636	WinMail.exe
Token: SeSecurityPrivilege	1976	cmd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1636	WinMail.exe

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1980	2032	a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe	28
PID 2032 wrote to memory of 1980	2032	a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe	28
PID 2032 wrote to memory of 1980	2032	a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe	28
PID 2032 wrote to memory of 1980	2032	a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe	28
PID 1980 wrote to memory of 1204	1980	696.exe	29
PID 1980 wrote to memory of 1204	1980	696.exe	29
PID 1980 wrote to memory of 1204	1980	696.exe	29
PID 1980 wrote to memory of 1204	1980	696.exe	29
PID 1204 wrote to memory of 1132	1204	kuem.exe	9
PID 1204 wrote to memory of 1132	1204	kuem.exe	9
PID 1204 wrote to memory of 1132	1204	kuem.exe	9
PID 1204 wrote to memory of 1132	1204	kuem.exe	9
PID 1204 wrote to memory of 1132	1204	kuem.exe	9
PID 1204 wrote to memory of 1236	1204	kuem.exe	17
PID 1204 wrote to memory of 1236	1204	kuem.exe	17
PID 1204 wrote to memory of 1236	1204	kuem.exe	17
PID 1204 wrote to memory of 1236	1204	kuem.exe	17
PID 1204 wrote to memory of 1236	1204	kuem.exe	17
PID 1204 wrote to memory of 1276	1204	kuem.exe	16
PID 1204 wrote to memory of 1276	1204	kuem.exe	16
PID 1204 wrote to memory of 1276	1204	kuem.exe	16
PID 1204 wrote to memory of 1276	1204	kuem.exe	16
PID 1204 wrote to memory of 1276	1204	kuem.exe	16
PID 1204 wrote to memory of 1980	1204	kuem.exe	28
PID 1204 wrote to memory of 1980	1204	kuem.exe	28
PID 1204 wrote to memory of 1980	1204	kuem.exe	28
PID 1204 wrote to memory of 1980	1204	kuem.exe	28
PID 1204 wrote to memory of 1980	1204	kuem.exe	28
PID 1204 wrote to memory of 1636	1204	kuem.exe	30
PID 1204 wrote to memory of 1636	1204	kuem.exe	30
PID 1204 wrote to memory of 1636	1204	kuem.exe	30
PID 1204 wrote to memory of 1636	1204	kuem.exe	30
PID 1204 wrote to memory of 1636	1204	kuem.exe	30
PID 1980 wrote to memory of 1976	1980	696.exe	31
PID 1980 wrote to memory of 1976	1980	696.exe	31
PID 1980 wrote to memory of 1976	1980	696.exe	31
PID 1980 wrote to memory of 1976	1980	696.exe	31
PID 1980 wrote to memory of 1976	1980	696.exe	31
PID 1980 wrote to memory of 1976	1980	696.exe	31
PID 1980 wrote to memory of 1976	1980	696.exe	31
PID 1980 wrote to memory of 1976	1980	696.exe	31
PID 1980 wrote to memory of 1976	1980	696.exe	31
PID 1204 wrote to memory of 852	1204	kuem.exe	32
PID 1204 wrote to memory of 852	1204	kuem.exe	32
PID 1204 wrote to memory of 852	1204	kuem.exe	32
PID 1204 wrote to memory of 852	1204	kuem.exe	32
PID 1204 wrote to memory of 852	1204	kuem.exe	32
PID 1204 wrote to memory of 1068	1204	kuem.exe	33
PID 1204 wrote to memory of 1068	1204	kuem.exe	33
PID 1204 wrote to memory of 1068	1204	kuem.exe	33
PID 1204 wrote to memory of 1068	1204	kuem.exe	33
PID 1204 wrote to memory of 1068	1204	kuem.exe	33
PID 1204 wrote to memory of 992	1204	kuem.exe	34
PID 1204 wrote to memory of 992	1204	kuem.exe	34
PID 1204 wrote to memory of 992	1204	kuem.exe	34
PID 1204 wrote to memory of 992	1204	kuem.exe	34
PID 1204 wrote to memory of 992	1204	kuem.exe	34

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1132

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1276
- C:\Users\Admin\AppData\Local\Temp\a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe
  "C:\Users\Admin\AppData\Local\Temp\a7253c61ac75d6392b22c3180e07b92c1f0ff2436ce1d27b061a85602c3984b0.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2032
- - C:\Users\Admin\AppData\Local\Temp\696\696.exe
    "C:\Users\Admin\AppData\Local\Temp\696\696.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Modifies Internet Explorer settings
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1980
  - - C:\Users\Admin\AppData\Roaming\Peef\kuem.exe
      "C:\Users\Admin\AppData\Roaming\Peef\kuem.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1204
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpa17e73ac.bat"
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1976

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1236

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 SetWindowsHookEx
PID:1636

C:\Windows\system32\conhost.exe
\??\C:\Windows\system32\conhost.exe "1267026280-1468471636542107054-200360568-605179609-1913564641755804401-319736228"
1⤵
PID:852

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1068

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:992

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\696\696.exe

Filesize
138KB

MD5
f771164a4981468ea1c7c1e3ed21b04a

SHA1
0fd9ffe6248e6a959293b3c9f98940c402b91423

SHA256
f44ef395a7ac322848a3558748465fd8d3d26c15e8efcea5896de610a53237c4

SHA512
1a0e6ce07d66624373cc49628b9a156466b83633950f61897fc4d02dcd71f78d780c1799f32bc879ffe0293ad6c21e7b1209d4243cd34eae7ec71fc7f43e8d08

Download Submit
C:\Users\Admin\AppData\Local\Temp\696\696.exe

Filesize
138KB

MD5
f771164a4981468ea1c7c1e3ed21b04a

SHA1
0fd9ffe6248e6a959293b3c9f98940c402b91423

SHA256
f44ef395a7ac322848a3558748465fd8d3d26c15e8efcea5896de610a53237c4

SHA512
1a0e6ce07d66624373cc49628b9a156466b83633950f61897fc4d02dcd71f78d780c1799f32bc879ffe0293ad6c21e7b1209d4243cd34eae7ec71fc7f43e8d08

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpa17e73ac.bat

Filesize
193B

MD5
0d391993c957a23ccf2bc3826ecb22e6

SHA1
9a902c73c603f92b7bc0674593a3ad0bc34caa11

SHA256
2338044a161d234f380175eeb8e3485be4e9e20eba3d165889b06c12da804cb2

SHA512
cd3d8fcb36804d3f708bd76b29bae8eaf394c32ab8603cfe45b45ce53ee0b8aa7f3928fd2385e6974583a599957c2c4358dbf3154fd5b0b9804af293e29647ea

Download Submit
C:\Users\Admin\AppData\Roaming\Moci\myfa.fua

Filesize
341B

MD5
a2ddc75a44306a5471d5c2a956c4fc63

SHA1
fb3db40b5d589c2c1b19adb13d6f7e2a6fcb839f

SHA256
a7dbc1fe0612c3c1dcb6036b13f0fac3fa43d1daa5ff14db83e5735261f0ce40

SHA512
eab8df16316a3b5ad7782e9ec9796d6771c45fd47977bda135f297d01f688b2e044d93a36824d4d571f39041bde3c42478b104050877316905b3c5b9169b0cd5

Download Submit
C:\Users\Admin\AppData\Roaming\Peef\kuem.exe

Filesize
138KB

MD5
d3b8ce4a606dd7266454c4b79c14752f

SHA1
c72fb5791b296077cbc15a9fecc6f0504c712524

SHA256
f767175e632539d7ff03ab5acdab6b06d1d57256254a5c3057290b4e1918dfe8

SHA512
df196d38097f5719f77b51d50a0fcdb0ad9a7b8b28d1eb2dc578b354598c37ba29ad1c784a7c23063fea2860217e6fe1d2080e40a5ff5fe34a942ebc4abbb132

Download Submit
C:\Users\Admin\AppData\Roaming\Peef\kuem.exe

Filesize
138KB

MD5
d3b8ce4a606dd7266454c4b79c14752f

SHA1
c72fb5791b296077cbc15a9fecc6f0504c712524

SHA256
f767175e632539d7ff03ab5acdab6b06d1d57256254a5c3057290b4e1918dfe8

SHA512
df196d38097f5719f77b51d50a0fcdb0ad9a7b8b28d1eb2dc578b354598c37ba29ad1c784a7c23063fea2860217e6fe1d2080e40a5ff5fe34a942ebc4abbb132

Download Submit
\Users\Admin\AppData\Local\Temp\696\696.exe

Filesize
138KB

MD5
f771164a4981468ea1c7c1e3ed21b04a

SHA1
0fd9ffe6248e6a959293b3c9f98940c402b91423

SHA256
f44ef395a7ac322848a3558748465fd8d3d26c15e8efcea5896de610a53237c4

SHA512
1a0e6ce07d66624373cc49628b9a156466b83633950f61897fc4d02dcd71f78d780c1799f32bc879ffe0293ad6c21e7b1209d4243cd34eae7ec71fc7f43e8d08

Download Submit
\Users\Admin\AppData\Local\Temp\696\696.exe

Filesize
138KB

MD5
f771164a4981468ea1c7c1e3ed21b04a

SHA1
0fd9ffe6248e6a959293b3c9f98940c402b91423

SHA256
f44ef395a7ac322848a3558748465fd8d3d26c15e8efcea5896de610a53237c4

SHA512
1a0e6ce07d66624373cc49628b9a156466b83633950f61897fc4d02dcd71f78d780c1799f32bc879ffe0293ad6c21e7b1209d4243cd34eae7ec71fc7f43e8d08

Download Submit
\Users\Admin\AppData\Local\Temp\696\696.exe

Filesize
138KB

MD5
f771164a4981468ea1c7c1e3ed21b04a

SHA1
0fd9ffe6248e6a959293b3c9f98940c402b91423

SHA256
f44ef395a7ac322848a3558748465fd8d3d26c15e8efcea5896de610a53237c4

SHA512
1a0e6ce07d66624373cc49628b9a156466b83633950f61897fc4d02dcd71f78d780c1799f32bc879ffe0293ad6c21e7b1209d4243cd34eae7ec71fc7f43e8d08

Download Submit
\Users\Admin\AppData\Local\Temp\696\696.exe

Filesize
138KB

MD5
f771164a4981468ea1c7c1e3ed21b04a

SHA1
0fd9ffe6248e6a959293b3c9f98940c402b91423

SHA256
f44ef395a7ac322848a3558748465fd8d3d26c15e8efcea5896de610a53237c4

SHA512
1a0e6ce07d66624373cc49628b9a156466b83633950f61897fc4d02dcd71f78d780c1799f32bc879ffe0293ad6c21e7b1209d4243cd34eae7ec71fc7f43e8d08

Download Submit
\Users\Admin\AppData\Roaming\Peef\kuem.exe

Filesize
138KB

MD5
d3b8ce4a606dd7266454c4b79c14752f

SHA1
c72fb5791b296077cbc15a9fecc6f0504c712524

SHA256
f767175e632539d7ff03ab5acdab6b06d1d57256254a5c3057290b4e1918dfe8

SHA512
df196d38097f5719f77b51d50a0fcdb0ad9a7b8b28d1eb2dc578b354598c37ba29ad1c784a7c23063fea2860217e6fe1d2080e40a5ff5fe34a942ebc4abbb132

Download Submit
\Users\Admin\AppData\Roaming\Peef\kuem.exe

Filesize
138KB

MD5
d3b8ce4a606dd7266454c4b79c14752f

SHA1
c72fb5791b296077cbc15a9fecc6f0504c712524

SHA256
f767175e632539d7ff03ab5acdab6b06d1d57256254a5c3057290b4e1918dfe8

SHA512
df196d38097f5719f77b51d50a0fcdb0ad9a7b8b28d1eb2dc578b354598c37ba29ad1c784a7c23063fea2860217e6fe1d2080e40a5ff5fe34a942ebc4abbb132

Download Submit
memory/852-127-0x00000000019D0000-0x00000000019F7000-memory.dmp

Filesize
156KB

Download
memory/852-128-0x00000000019D0000-0x00000000019F7000-memory.dmp

Filesize
156KB

Download
memory/852-126-0x00000000019D0000-0x00000000019F7000-memory.dmp

Filesize
156KB

Download
memory/852-125-0x00000000019D0000-0x00000000019F7000-memory.dmp

Filesize
156KB

Download
memory/1068-135-0x0000000001DD0000-0x0000000001DF7000-memory.dmp

Filesize
156KB

Download
memory/1132-72-0x0000000001DE0000-0x0000000001E07000-memory.dmp

Filesize
156KB

Download
memory/1132-74-0x0000000001DE0000-0x0000000001E07000-memory.dmp

Filesize
156KB

Download
memory/1132-73-0x0000000001DE0000-0x0000000001E07000-memory.dmp

Filesize
156KB

Download
memory/1132-69-0x0000000001DE0000-0x0000000001E07000-memory.dmp

Filesize
156KB

Download
memory/1132-71-0x0000000001DE0000-0x0000000001E07000-memory.dmp

Filesize
156KB

Download
memory/1236-77-0x00000000001C0000-0x00000000001E7000-memory.dmp

Filesize
156KB

Download
memory/1236-79-0x00000000001C0000-0x00000000001E7000-memory.dmp

Filesize
156KB

Download
memory/1236-78-0x00000000001C0000-0x00000000001E7000-memory.dmp

Filesize
156KB

Download
memory/1236-80-0x00000000001C0000-0x00000000001E7000-memory.dmp

Filesize
156KB

Download
memory/1276-84-0x00000000029B0000-0x00000000029D7000-memory.dmp

Filesize
156KB

Download
memory/1276-83-0x00000000029B0000-0x00000000029D7000-memory.dmp

Filesize
156KB

Download
memory/1276-85-0x00000000029B0000-0x00000000029D7000-memory.dmp

Filesize
156KB

Download
memory/1276-86-0x00000000029B0000-0x00000000029D7000-memory.dmp

Filesize
156KB

Download
memory/1636-113-0x0000000003B90000-0x0000000003BB7000-memory.dmp

Filesize
156KB

Download
memory/1636-95-0x000007FEF62E1000-0x000007FEF62E3000-memory.dmp

Filesize
8KB

Download
memory/1636-96-0x0000000002200000-0x0000000002210000-memory.dmp

Filesize
64KB

Download
memory/1636-102-0x0000000002260000-0x0000000002270000-memory.dmp

Filesize
64KB

Download
memory/1636-110-0x0000000003B90000-0x0000000003BB7000-memory.dmp

Filesize
156KB

Download
memory/1636-111-0x0000000003B90000-0x0000000003BB7000-memory.dmp

Filesize
156KB

Download
memory/1636-112-0x0000000003B90000-0x0000000003BB7000-memory.dmp

Filesize
156KB

Download
memory/1636-94-0x000007FEFC451000-0x000007FEFC453000-memory.dmp

Filesize
8KB

Download
memory/1976-121-0x0000000000050000-0x0000000000077000-memory.dmp

Filesize
156KB

Download
memory/1976-130-0x0000000000050000-0x0000000000077000-memory.dmp

Filesize
156KB

Download
memory/1976-120-0x0000000000050000-0x0000000000077000-memory.dmp

Filesize
156KB

Download
memory/1976-132-0x0000000000050000-0x0000000000077000-memory.dmp

Filesize
156KB

Download
memory/1976-117-0x0000000000050000-0x0000000000077000-memory.dmp

Filesize
156KB

Download
memory/1976-119-0x0000000000050000-0x0000000000077000-memory.dmp

Filesize
156KB

Download
memory/1980-91-0x0000000000270000-0x0000000000297000-memory.dmp

Filesize
156KB

Download
memory/1980-93-0x0000000000270000-0x0000000000297000-memory.dmp

Filesize
156KB

Download
memory/1980-92-0x0000000000270000-0x0000000000297000-memory.dmp

Filesize
156KB

Download
memory/1980-90-0x0000000000270000-0x0000000000297000-memory.dmp

Filesize
156KB

Download
memory/1980-89-0x0000000000270000-0x0000000000297000-memory.dmp

Filesize
156KB

Download
memory/2032-54-0x00000000767B1000-0x00000000767B3000-memory.dmp

Filesize
8KB

Download