a5236b3142e898d26bf6f106029a3dafc72960eb4949b1ebb59cac601364fd61

Analysis

max time kernel
120s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 17:51

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General

Target

KRNLWRD/krnl.exe
Size

1.2MB
MD5

fb3a52d1045b1a0298668f2d77680306
SHA1

e16d5085977f1b895b7b2a046570b2da474add86
SHA256

8869c44219364f911548cb18da0cc6413b3277d3a8a8df18d0a521b558830d6e
SHA512

e19ce4c86ef8bf2ab25b4da67bf83acef5a8e688abfd3f96e8dec8169ce410c833df7685b6fb0b7489cf90ca51c56cd7264e8b2a94865aea5e5dacd4c5b7f44f
SSDEEP

12288:LMqP5hP0pwI7+G70EE/0GGGGGGhGGGGxdoM43nwVkokbtkK:LZEpRC4ysGGGGGGhGGGGx1Vpstz

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1756	2244	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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2720	chrome.exe
2720	chrome.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe
Token: SeShutdownPrivilege	2720	chrome.exe

Suspicious use of FindShellTrayWindow 36 IoCs

pid	Process
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2876	rundll32.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe
2720	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 1756	2244	krnl.exe	29
PID 2244 wrote to memory of 1756	2244	krnl.exe	29
PID 2244 wrote to memory of 1756	2244	krnl.exe	29
PID 2244 wrote to memory of 1756	2244	krnl.exe	29
PID 2720 wrote to memory of 2736	2720	chrome.exe	31
PID 2720 wrote to memory of 2736	2720	chrome.exe	31
PID 2720 wrote to memory of 2736	2720	chrome.exe	31
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2548	2720	chrome.exe	33
PID 2720 wrote to memory of 2872	2720	chrome.exe	34
PID 2720 wrote to memory of 2872	2720	chrome.exe	34
PID 2720 wrote to memory of 2872	2720	chrome.exe	34
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35
PID 2720 wrote to memory of 2236	2720	chrome.exe	35

C:\Users\Admin\AppData\Local\Temp\KRNLWRD\krnl.exe
"C:\Users\Admin\AppData\Local\Temp\KRNLWRD\krnl.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2244 -s 572
  2⤵
  - Program crash
  PID:1756

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:2720
- 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,0x7fef6729758,0x7fef6729768,0x7fef6729778
  2⤵
  PID:2736
- 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=1160 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:2
  2⤵
  PID:2548
- 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=1504 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:8
  2⤵
  PID:2872
- 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=1584 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:8
  2⤵
  PID:2236
- 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=2280 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:1
  2⤵
  PID:2532
- 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=2300 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:1
  2⤵
  PID:2540
- 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=1388 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:2
  2⤵
  PID:784
- 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=3016 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:1
  2⤵
  PID:528
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3488 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:8
  2⤵
  PID:1908
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3660 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:8
  2⤵
  PID:1428
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3644 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:8
  2⤵
  PID:1064
- 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=12 --mojo-platform-channel-handle=3816 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:1
  2⤵
  PID:2092
- 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=13 --mojo-platform-channel-handle=3992 --field-trial-handle=1288,i,15290406807445393784,4764767434823055076,131072 /prefetch:1
  2⤵
  PID:1972

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:1408

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
1⤵
PID:2032

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" pnidui.dll,NwCategoryWiz {0ceebf1f-2565-4a2c-82d1-c630d0e51d7f} 0
1⤵
- Suspicious use of FindShellTrayWindow
PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\11d1e035-e4e8-4979-a27a-bbedf143b2ce.tmp

Filesize
144KB

MD5
c5a4bae12a8f444bc7e918de042b74a1

SHA1
9ab8397acad568cf30f87a31538975a4bc398fa9

SHA256
f09d49d7034d68e32ec832fd95accd97c6d5433dfbec4f68d85b704bdcb9cedb

SHA512
a9d8d9cd0d4e0f627038bdb33e04d02fad307ed54b65362f307db7860ddc5cc886787aee074f8d06699e87b16d4bb0db72fce97cd4f520a58aa86e8794156dd0

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\000006.dbtmp

Filesize
16B

MD5
aefd77f47fb84fae5ea194496b44c67a

SHA1
dcfbb6a5b8d05662c4858664f81693bb7f803b82

SHA256
4166bf17b2da789b0d0cc5c74203041d98005f5d4ef88c27e8281e00148cd611

SHA512
b733d502138821948267a8b27401d7c0751e590e1298fda1428e663ccd02f55d0d2446ff4bc265bdcdc61f952d13c01524a5341bc86afc3c2cde1d8589b2e1c3

Download Submit
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\Preferences

Filesize
6KB

MD5
85269de68db9f2d1440a9eb760764dad

SHA1
1810d9365a130bf25d001b911db7055331534cb7

SHA256
7aa6ac2b63ad781e5ef98bb65310ae9a8a5f873159bb99a7190774d41afd6ce7

SHA512
889fe6df5c5569b7787cbb27db9e3c63c63c5a9fcaaf9cb094b164b7de5828d388594d06e75d11a7aff052ee68955b7bb24241c87cf0f62477edd77fbf541798

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp

Filesize
16B

MD5
18e723571b00fb1694a3bad6c78e4054

SHA1
afcc0ef32d46fe59e0483f9a3c891d3034d12f32

SHA256
8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

SHA512
43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

Filesize
144KB

MD5
b62dd8a420fc4e1c8eaccbf632a6dc53

SHA1
1acc46e84ad5803f42f57f1e519c1701f6375ee5

SHA256
eac6211b465b24b8490d8fb2aea8ac876f08558818cc946ce0541a48a5dd0708

SHA512
f608127412293e05a0f9d8a35fc17d67da103cfcf8b6988dc4f562a1fcca64d5d08048804f43ac61b75adf9c39386f7fe2abd42ded169d772e87660f7368479a

Download Submit
memory/2244-0-0x000000007409E000-0x000000007409F000-memory.dmp

Filesize
4KB

Download
memory/2244-1-0x0000000000350000-0x0000000000486000-memory.dmp

Filesize
1.2MB

Download