0895e5c8354d90cd47dfd9b0f92d400ba0675e2467f01d6d4714344345afe931

Analysis

max time kernel
52s
max time network
53s
platform
windows7_x64
resource
win7-20230705-en
resource tags

arch:x64arch:x86image:win7-20230705-enlocale:en-usos:windows7-x64system
submitted
11/07/2023, 10:59

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General

Target

Stub.exe
Size

27KB
MD5

3003ca8bbdde3b4e9ecf6c78771751be
SHA1

d139feb95ef22f87a200fe11c398d1646f0b5d8e
SHA256

0895e5c8354d90cd47dfd9b0f92d400ba0675e2467f01d6d4714344345afe931
SHA512

e0348cf8f833711eed4b8b64fa86b1edbdc9083161548e0942521a9dc2e33f8bf40aa8c66c3602224fc08acbf532faef79d18edf2c9e4f928989577d708ed229
SSDEEP

384:BEnPsCz5L+5g8NvD4CUKrNbktPhvS2TeKQNf8TkA/4E/q+LRmDTHOiux5mfLS+oK:2nPsOf8NvDHFNb4S2T+NfQziO3K

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-511725148-388773979-2853099937-1000\Software\Microsoft\Windows\CurrentVersion\Run	chrome.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2304	chrome.exe
2304	chrome.exe

Suspicious use of AdjustPrivilegeToken 38 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: 33	1736	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1736	AUDIODG.EXE
Token: 33	1736	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1736	AUDIODG.EXE
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe
Token: SeShutdownPrivilege	2304	chrome.exe

Suspicious use of FindShellTrayWindow 35 IoCs

pid	Process
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe
2304	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 816 wrote to memory of 2156	816	Stub.exe	28
PID 816 wrote to memory of 2156	816	Stub.exe	28
PID 816 wrote to memory of 2156	816	Stub.exe	28
PID 816 wrote to memory of 2156	816	Stub.exe	28
PID 2304 wrote to memory of 2340	2304	chrome.exe	30
PID 2304 wrote to memory of 2340	2304	chrome.exe	30
PID 2304 wrote to memory of 2340	2304	chrome.exe	30
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2236	2304	chrome.exe	32
PID 2304 wrote to memory of 2916	2304	chrome.exe	33
PID 2304 wrote to memory of 2916	2304	chrome.exe	33
PID 2304 wrote to memory of 2916	2304	chrome.exe	33
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34
PID 2304 wrote to memory of 2988	2304	chrome.exe	34

C:\Users\Admin\AppData\Local\Temp\Stub.exe
"C:\Users\Admin\AppData\Local\Temp\Stub.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:816
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 424
  2⤵
  PID:2156

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe"
1⤵
- Adds Run key to start application
- 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:2304
- 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,0x7fefb659758,0x7fefb659768,0x7fefb659778
  2⤵
  PID:2340
- 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=1176 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:2
  2⤵
  PID:2236
- 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=1508 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:8
  2⤵
  PID:2916
- 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=1640 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:8
  2⤵
  PID:2988
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2008 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:1
  2⤵
  PID:2224
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2300 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:1
  2⤵
  PID:2532
- 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=1392 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:2
  2⤵
  PID:856
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3696 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:1
  2⤵
  PID:2428
- 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=3908 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:8
  2⤵
  PID:2620
- 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=4040 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:8
  2⤵
  PID:1388
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=3928 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:1
  2⤵
  PID:2844
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --lang=en-US --service-sandbox-type=audio --mojo-platform-channel-handle=1172 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:8
  2⤵
  PID:1900
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=13 --mojo-platform-channel-handle=2580 --field-trial-handle=1376,i,9364523754003706300,967174750781891711,131072 /prefetch:1
  2⤵
  PID:1576

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:2576

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x5c0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1736

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

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\Network\TransportSecurity

Filesize
361B

MD5
f62fde250bd6fc95bac4346730cf1f1e

SHA1
828b7e8c6e2fbb034d891d724c302bf485f6a807

SHA256
d2e7345cfb63fd837bba113cb5ff2ab5a86311f738b9f020600a892bb363803a

SHA512
fc4956069d1fd47fb89fe7bc2af7f363288200803f5c44037ec4ac8b2936cce0a369058177eefaf733be85080d41d4f00d0adafb8fdfe4e88a5fbf8d7f3866c3

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

Filesize
4KB

MD5
28f68aa042db7495562414b24caf7944

SHA1
4cbaa9456f0361ac84bf042ec6ff4385f0360571

SHA256
a916139c585be996c30b3a7df18c0d428a68425d62e7c5b765d094be59d29c64

SHA512
a4e92411cd805351938493f1549eae90cac0668ed6d17680043ad6aeab377f1665bf8e7963d4ded1105d0b0e1a98f31357d467d72e9d225adf83184579366295

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\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
172KB

MD5
9fd0cf5820cc792c8b42bf03759356f0

SHA1
62d37da443dfa1993d729dca297f26479c0e51e1

SHA256
a9c63edb322af0e88ca2cd519b18df131306be01868aa06668d0a348fc3a4dbc

SHA512
55233bf311b9602cd229d1ba64de3a5cf0882d8634a735cbac3527d4ab7260de921686ee2235bc4580b6c68726d27c4679da6dc5cce391337247345aa21b9377

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\ff1367b5-b96d-4f2b-8459-c6b88cd15855.tmp

Filesize
172KB

MD5
d615959ed5d5571581de9ecdf9f89a11

SHA1
11fed70637b7eec7a1448177f562a24290f83fa7

SHA256
18ac1afff650651ecffc67955162bdaac272f77cded54feecd0bf4dbee4ea1f2

SHA512
bcc4d4f66c2e9267721557f091a3617d9a63ec56a1aa2b54be18943f1ae405ea46924ea1e401acf6047b9f0aa75b4a7bebb057e385acb7058f7d16934b849a5d

Download Submit
memory/816-54-0x0000000000600000-0x0000000000640000-memory.dmp

Filesize
256KB

Download
memory/2156-55-0x0000000001E10000-0x0000000001E11000-memory.dmp

Filesize
4KB

Download