2ab5f10366ebad9e4af9369730495a6bd48ad278e78f880a54d583024491786d

Analysis

max time kernel
75s
max time network
75s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-02-2024 08:26

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General

Target

Obekräftade 309647.exe
Size

43KB
MD5

f6aa0dd947ff84db2c0e991aab776dcc
SHA1

73d377c8d4b7d04ac9fd6c47d74491d76ca6cf6e
SHA256

2ab5f10366ebad9e4af9369730495a6bd48ad278e78f880a54d583024491786d
SHA512

3d81ae0131c6fc531d0592259d5cf7296aa61487de785e5b534a696867ae9ef8abae19aa1b938a62db6492af38829dfdbeb7da0d69ba2253b26cb8dd41d8bc83
SSDEEP

384:1bGThpZmtWqjV0rABs4q56hDLApNEKYZWVOggl6k4+jQukJs0yjW:1bSutWvkBsXqApNTuB/7jeRH

Score

8^/10

bootkit evasion persistence

Malware Config

Signatures

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	REG.exe

Disables Task Manager via registry modification
evasion

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	Obekräftade 309647.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2432	2848	WerFault.exe	27

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2920	taskkill.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
2092	REG.exe
2944	REG.exe
1152	REG.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2448	chrome.exe
2448	chrome.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	2920	taskkill.exe
Token: SeShutdownPrivilege	2448	chrome.exe
Token: SeShutdownPrivilege	2448	chrome.exe
Token: SeShutdownPrivilege	2448	chrome.exe
Token: SeShutdownPrivilege	2448	chrome.exe
Token: SeShutdownPrivilege	2448	chrome.exe
Token: SeShutdownPrivilege	2448	chrome.exe
Token: SeShutdownPrivilege	2448	chrome.exe
Token: SeShutdownPrivilege	2448	chrome.exe
Token: SeShutdownPrivilege	2448	chrome.exe
Token: SeShutdownPrivilege	2448	chrome.exe

Suspicious use of FindShellTrayWindow 51 IoCs

pid	Process
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe

Suspicious use of SendNotifyMessage 48 IoCs

pid	Process
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe
2448	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2920	2848	Obekräftade 309647.exe	29
PID 2848 wrote to memory of 2920	2848	Obekräftade 309647.exe	29
PID 2848 wrote to memory of 2920	2848	Obekräftade 309647.exe	29
PID 2848 wrote to memory of 2920	2848	Obekräftade 309647.exe	29
PID 2848 wrote to memory of 1152	2848	Obekräftade 309647.exe	31
PID 2848 wrote to memory of 1152	2848	Obekräftade 309647.exe	31
PID 2848 wrote to memory of 1152	2848	Obekräftade 309647.exe	31
PID 2848 wrote to memory of 1152	2848	Obekräftade 309647.exe	31
PID 2848 wrote to memory of 2092	2848	Obekräftade 309647.exe	32
PID 2848 wrote to memory of 2092	2848	Obekräftade 309647.exe	32
PID 2848 wrote to memory of 2092	2848	Obekräftade 309647.exe	32
PID 2848 wrote to memory of 2092	2848	Obekräftade 309647.exe	32
PID 2848 wrote to memory of 2944	2848	Obekräftade 309647.exe	34
PID 2848 wrote to memory of 2944	2848	Obekräftade 309647.exe	34
PID 2848 wrote to memory of 2944	2848	Obekräftade 309647.exe	34
PID 2848 wrote to memory of 2944	2848	Obekräftade 309647.exe	34
PID 2848 wrote to memory of 2432	2848	Obekräftade 309647.exe	38
PID 2848 wrote to memory of 2432	2848	Obekräftade 309647.exe	38
PID 2848 wrote to memory of 2432	2848	Obekräftade 309647.exe	38
PID 2848 wrote to memory of 2432	2848	Obekräftade 309647.exe	38
PID 2448 wrote to memory of 2684	2448	chrome.exe	42
PID 2448 wrote to memory of 2684	2448	chrome.exe	42
PID 2448 wrote to memory of 2684	2448	chrome.exe	42
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 304	2448	chrome.exe	43
PID 2448 wrote to memory of 580	2448	chrome.exe	44
PID 2448 wrote to memory of 580	2448	chrome.exe	44

C:\Users\Admin\AppData\Local\Temp\Obekräftade 309647.exe
"C:\Users\Admin\AppData\Local\Temp\Obekräftade 309647.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im taskmgr.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2920
- C:\Windows\SysWOW64\REG.exe
  REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
  2⤵
  - Modifies registry key
  PID:1152
- C:\Windows\SysWOW64\REG.exe
  REG add HKCU\SOFTWARE\Policies\Microsoft\Windows\System /v DisableCMD /t REG_DWORD /d 1 /f
  2⤵
  - Modifies registry key
  PID:2092
- C:\Windows\SysWOW64\REG.exe
  REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
  2⤵
  - Disables RegEdit via registry modification
  - Modifies registry key
  PID:2944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 564
  2⤵
  - Program crash
  PID:2432

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe"
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef7329758,0x7fef7329768,0x7fef7329778
  2⤵
  PID:2684
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1164 --field-trial-handle=1384,i,16788451957516835094,12463728983024854537,131072 /prefetch:2
  2⤵
  PID:304
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1432 --field-trial-handle=1384,i,16788451957516835094,12463728983024854537,131072 /prefetch:8
  2⤵
  PID:580
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1596 --field-trial-handle=1384,i,16788451957516835094,12463728983024854537,131072 /prefetch:8
  2⤵
  PID:1644
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=1984 --field-trial-handle=1384,i,16788451957516835094,12463728983024854537,131072 /prefetch:1
  2⤵
  PID:1288
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2108 --field-trial-handle=1384,i,16788451957516835094,12463728983024854537,131072 /prefetch:1
  2⤵
  PID:1940
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1720 --field-trial-handle=1384,i,16788451957516835094,12463728983024854537,131072 /prefetch:2
  2⤵
  PID:904
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3252 --field-trial-handle=1384,i,16788451957516835094,12463728983024854537,131072 /prefetch:1
  2⤵
  PID:2308

C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
1⤵
PID:1896

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:2208

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:2520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\CURRENT

Filesize
16B

MD5
18e723571b00fb1694a3bad6c78e4054

SHA1
afcc0ef32d46fe59e0483f9a3c891d3034d12f32

SHA256
8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

SHA512
43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\d960b29c-c402-4b3e-b6f1-89137db5b0d1.tmp

Filesize
257KB

MD5
e8ddb436f8078d2d32f86c1096a75598

SHA1
90bec10f06309c94cda729e7b56da9d43e149873

SHA256
4c4d6d38a61abda4dc966a4dd0c786a74be4dff897b3284a2b38b396119dee7a

SHA512
bff460bc97331dad047fc3c862bfd380b0742cd286e2c529e11ece370d9ce32aa05382610b69ee78a15bba4764d62b81c9477764dd3e541e640a50c7d0b10935

Download Submit
\??\pipe\crashpad_2448_SYBASMXVTSWIGFCK

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/2848-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download