cb5c12b4a3fa286e1995422a88edf24b36f297395cf564bb21dd595d477626ab

Analysis

max time kernel
150s
max time network
136s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-11-2024 16:59

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General

Target

kmSdem1.exe
Size

268KB
MD5

dae810ed8cf180a99a0c0572b4f8f9b5
SHA1

1923b46caac111b8fa04345cbfe9861e5fca7c32
SHA256

f781f7a6d12d8e7581fa4ccd6365f3026af61df4b4a1b2d27d56e8b6bf118aea
SHA512

5792e317bba8c5d4ca305fd427b03dd972e1e8057190695df6aac41b705ab7e3686fedb3da54fd806e1ebb04cc7a3eac1525a5f7a0c8e20279915a830505b7e8
SSDEEP

6144:SKDFWqyd3oxcdzOjcufgM7e3lSQtZ0PoOKEtq70uHRinFBqLTabu0W:lDwu+OjcufWlvQoOKEtY/xUBqLSxW

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2596	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2908	seula.exe

Loads dropped DLL 2 IoCs

pid	Process
2820	kmSdem1.exe
2820	kmSdem1.exe

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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\{D828F808-3C80-AD4F-7E84-E44A5F96C757} = "C:\\Users\\Admin\\AppData\\Roaming\\Orywi\\seula.exe"	seula.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 2596	2820	kmSdem1.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kmSdem1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Privacy	kmSdem1.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	kmSdem1.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe
2908	seula.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2820	kmSdem1.exe
2908	seula.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 2908	2820	kmSdem1.exe	30
PID 2820 wrote to memory of 2908	2820	kmSdem1.exe	30
PID 2820 wrote to memory of 2908	2820	kmSdem1.exe	30
PID 2820 wrote to memory of 2908	2820	kmSdem1.exe	30
PID 2908 wrote to memory of 1060	2908	seula.exe	18
PID 2908 wrote to memory of 1060	2908	seula.exe	18
PID 2908 wrote to memory of 1060	2908	seula.exe	18
PID 2908 wrote to memory of 1060	2908	seula.exe	18
PID 2908 wrote to memory of 1060	2908	seula.exe	18
PID 2908 wrote to memory of 1116	2908	seula.exe	19
PID 2908 wrote to memory of 1116	2908	seula.exe	19
PID 2908 wrote to memory of 1116	2908	seula.exe	19
PID 2908 wrote to memory of 1116	2908	seula.exe	19
PID 2908 wrote to memory of 1116	2908	seula.exe	19
PID 2908 wrote to memory of 1148	2908	seula.exe	20
PID 2908 wrote to memory of 1148	2908	seula.exe	20
PID 2908 wrote to memory of 1148	2908	seula.exe	20
PID 2908 wrote to memory of 1148	2908	seula.exe	20
PID 2908 wrote to memory of 1148	2908	seula.exe	20
PID 2908 wrote to memory of 2040	2908	seula.exe	23
PID 2908 wrote to memory of 2040	2908	seula.exe	23
PID 2908 wrote to memory of 2040	2908	seula.exe	23
PID 2908 wrote to memory of 2040	2908	seula.exe	23
PID 2908 wrote to memory of 2040	2908	seula.exe	23
PID 2908 wrote to memory of 2820	2908	seula.exe	29
PID 2908 wrote to memory of 2820	2908	seula.exe	29
PID 2908 wrote to memory of 2820	2908	seula.exe	29
PID 2908 wrote to memory of 2820	2908	seula.exe	29
PID 2908 wrote to memory of 2820	2908	seula.exe	29
PID 2820 wrote to memory of 2596	2820	kmSdem1.exe	31
PID 2820 wrote to memory of 2596	2820	kmSdem1.exe	31
PID 2820 wrote to memory of 2596	2820	kmSdem1.exe	31
PID 2820 wrote to memory of 2596	2820	kmSdem1.exe	31
PID 2820 wrote to memory of 2596	2820	kmSdem1.exe	31
PID 2820 wrote to memory of 2596	2820	kmSdem1.exe	31
PID 2820 wrote to memory of 2596	2820	kmSdem1.exe	31
PID 2820 wrote to memory of 2596	2820	kmSdem1.exe	31
PID 2820 wrote to memory of 2596	2820	kmSdem1.exe	31

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1060

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1116

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1148
- C:\Users\Admin\AppData\Local\Temp\kmSdem1.exe
  "C:\Users\Admin\AppData\Local\Temp\kmSdem1.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:2820
- - C:\Users\Admin\AppData\Roaming\Orywi\seula.exe
    "C:\Users\Admin\AppData\Roaming\Orywi\seula.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:2908
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp6fcf27cb.bat"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2596

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:2040

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6fcf27cb.bat

Filesize
193B

MD5
d9817e28abf37e964984c90926c3b221

SHA1
01e7c33274fcc732e236d9532753948369ffb453

SHA256
005d59b78976bf1db4ba94c51ff2d9528499fb61d18aa7802f8340339a1e6146

SHA512
cf360ee55ba7a0edad0f9492ded4e989ad1e8250e969312cca98c25a4b5d1165378126ce34c5ce64a14ed3d6c07d0e28c2616be8af77dead6fc0bcf5c6e10258

Download Submit
C:\Users\Admin\AppData\Roaming\Orywi\seula.exe

Filesize
268KB

MD5
04b7131954307e58b8dbe6aa92cea20d

SHA1
9924a635ef9ea1ba58b707b2c3392c2ffc9adc5b

SHA256
447c337150699862cf450d18a1bf1654ff75bd74f1a8b1b9b0b2872b8705494e

SHA512
02cb6326611f3c308d299d5f2dc631b55418e4fd099e0d25eb78384ace52b1e1cb25612c290f9f99f676426abc3099a287ee250e8c52a48afa96204f56df3e88

Download Submit
memory/1060-18-0x00000000020E0000-0x0000000002122000-memory.dmp

Filesize
264KB

Download
memory/1060-20-0x00000000020E0000-0x0000000002122000-memory.dmp

Filesize
264KB

Download
memory/1060-22-0x00000000020E0000-0x0000000002122000-memory.dmp

Filesize
264KB

Download
memory/1060-25-0x00000000020E0000-0x0000000002122000-memory.dmp

Filesize
264KB

Download
memory/1060-27-0x00000000020E0000-0x0000000002122000-memory.dmp

Filesize
264KB

Download
memory/1116-30-0x0000000002090000-0x00000000020D2000-memory.dmp

Filesize
264KB

Download
memory/1116-32-0x0000000002090000-0x00000000020D2000-memory.dmp

Filesize
264KB

Download
memory/1116-34-0x0000000002090000-0x00000000020D2000-memory.dmp

Filesize
264KB

Download
memory/1116-36-0x0000000002090000-0x00000000020D2000-memory.dmp

Filesize
264KB

Download
memory/1148-40-0x0000000002500000-0x0000000002542000-memory.dmp

Filesize
264KB

Download
memory/1148-39-0x0000000002500000-0x0000000002542000-memory.dmp

Filesize
264KB

Download
memory/1148-41-0x0000000002500000-0x0000000002542000-memory.dmp

Filesize
264KB

Download
memory/1148-42-0x0000000002500000-0x0000000002542000-memory.dmp

Filesize
264KB

Download
memory/2040-48-0x0000000001E50000-0x0000000001E92000-memory.dmp

Filesize
264KB

Download
memory/2040-44-0x0000000001E50000-0x0000000001E92000-memory.dmp

Filesize
264KB

Download
memory/2040-50-0x0000000001E50000-0x0000000001E92000-memory.dmp

Filesize
264KB

Download
memory/2040-46-0x0000000001E50000-0x0000000001E92000-memory.dmp

Filesize
264KB

Download
memory/2820-165-0x0000000000360000-0x00000000003AA000-memory.dmp

Filesize
296KB

Download
memory/2820-1-0x0000000000360000-0x00000000003AA000-memory.dmp

Filesize
296KB

Download
memory/2820-64-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-62-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-61-0x0000000001E50000-0x0000000001E92000-memory.dmp

Filesize
264KB

Download
memory/2820-60-0x0000000001E50000-0x0000000001E92000-memory.dmp

Filesize
264KB

Download
memory/2820-70-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-72-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-74-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-76-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-78-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-80-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-164-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2820-66-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-141-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-140-0x0000000076F60000-0x0000000076F61000-memory.dmp

Filesize
4KB

Download
memory/2820-68-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2820-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2820-3-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2820-4-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2820-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2820-0-0x0000000000310000-0x0000000000352000-memory.dmp

Filesize
264KB

Download
memory/2908-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2908-15-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2908-283-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2908-284-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2908-285-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download