6cba4bd30e036441c0d4f18092a881ce514ff719c84598cc4b7e3990bdc46ac0

Analysis

max time kernel
18s
max time network
21s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 13:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

R3nzSkin.dll
Size

740KB
MD5

0b101b37c373291fc8dbac097125e695
SHA1

66c8115b0929f918bf2385cecf715ed8fa425ec0
SHA256

6cba4bd30e036441c0d4f18092a881ce514ff719c84598cc4b7e3990bdc46ac0
SHA512

27b734102bff44c3ada76b156dc152d20c8744d2b1b9a8fbf182c040ad23993693f1bbc17342afec7602c0a026b36ba9bde1d64c828098aae328e8f26d30a81b
SSDEEP

12288:IJeQIYHjf4qxfWeJlf6TCbyTqEx2SLPAxHZVy5oj9snTgG:aeQPf4SWcB6ZGEkMPiHG5O9snT

Score

5^/10

Malware Config

Signatures

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2928	rundll32.exe
2928	rundll32.exe

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
2792	chrome.exe
2792	chrome.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2792	chrome.exe
Token: SeShutdownPrivilege	2792	chrome.exe
Token: SeShutdownPrivilege	2792	chrome.exe
Token: SeShutdownPrivilege	2792	chrome.exe
Token: SeShutdownPrivilege	2792	chrome.exe
Token: SeShutdownPrivilege	2792	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe
2792	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2612	2792	chrome.exe	29
PID 2792 wrote to memory of 2612	2792	chrome.exe	29
PID 2792 wrote to memory of 2612	2792	chrome.exe	29
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2520	2792	chrome.exe	31
PID 2792 wrote to memory of 2944	2792	chrome.exe	32
PID 2792 wrote to memory of 2944	2792	chrome.exe	32
PID 2792 wrote to memory of 2944	2792	chrome.exe	32
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33
PID 2792 wrote to memory of 2016	2792	chrome.exe	33

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\R3nzSkin.dll,#1
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2928

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:2792
- 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,0x7fef6cb9758,0x7fef6cb9768,0x7fef6cb9778
  2⤵
  PID:2612
- 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=1156 --field-trial-handle=1360,i,9996061338031817712,10074116374683038062,131072 /prefetch:2
  2⤵
  PID:2520
- 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=1360,i,9996061338031817712,10074116374683038062,131072 /prefetch:8
  2⤵
  PID:2944
- 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=1360,i,9996061338031817712,10074116374683038062,131072 /prefetch:8
  2⤵
  PID:2016
- 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=2308 --field-trial-handle=1360,i,9996061338031817712,10074116374683038062,131072 /prefetch:1
  2⤵
  PID:2732
- 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=2300 --field-trial-handle=1360,i,9996061338031817712,10074116374683038062,131072 /prefetch:1
  2⤵
  PID:1360
- 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=1360,i,9996061338031817712,10074116374683038062,131072 /prefetch:2
  2⤵
  PID:2368
- 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=1144 --field-trial-handle=1360,i,9996061338031817712,10074116374683038062,131072 /prefetch:1
  2⤵
  PID:2304

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:1660

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\7d0b803b-53b5-4fdb-aa1a-73b970849f35.tmp

Filesize
257KB

MD5
94141fc0c1f2be6285fc0a63702246ea

SHA1
10d5f55415a3106fb76aaf141a70ba04fed7c278

SHA256
920095e2fd2f146dcd95e9479c9d158253474cbea58d1d563b89b965a68f3ff5

SHA512
a7674afeb0b18c762761392ef5655b6d93c5da6419eb71a9fd5c1b90018fa950eda32235be4ffb294fdeab22f760d0bae4aee0afa82509cddf86861cf3e63634

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\Sync Data\LevelDB\000007.dbtmp

Filesize
16B

MD5
18e723571b00fb1694a3bad6c78e4054

SHA1
afcc0ef32d46fe59e0483f9a3c891d3034d12f32

SHA256
8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

SHA512
43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

Download Submit