0bf6008417c9d3319b7433e68c21e309931b7b7916a186cd735609a558003dcd

Analysis

max time kernel
40s
max time network
39s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
02/04/2023, 09:29

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General

Target

master_me.exe
Size

2.3MB
MD5

ad8226f73fce2cbc0ac79be300d06307
SHA1

1734803520a394c7a21141b681fff15d853b29a6
SHA256

0bf6008417c9d3319b7433e68c21e309931b7b7916a186cd735609a558003dcd
SHA512

70e637bbdd25910e34eea8261fa08cc0edb6dcf05db08d79ffaf9e519cb8a4119a7a03bf4b8d5b84c5a9b0d92d4791e361d88f945760d30147c2207a3b5ebae5
SSDEEP

24576:bfSoCO51+oskKGY81NU5ctP2w+TXhvasQPuvHJVr6UvaUxEpwuvbmVv+HnhE+BET:bfShO5slS1NU5gPGQqKpOVv+HfWN

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-1-5-21-1283023626-844874658-3193756055-1000\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 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
636	chrome.exe
636	chrome.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe
Token: SeShutdownPrivilege	636	chrome.exe

Suspicious use of FindShellTrayWindow 35 IoCs

pid	Process
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe
636	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 580	636	chrome.exe	30
PID 636 wrote to memory of 580	636	chrome.exe	30
PID 636 wrote to memory of 580	636	chrome.exe	30
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1544	636	chrome.exe	32
PID 636 wrote to memory of 1756	636	chrome.exe	33
PID 636 wrote to memory of 1756	636	chrome.exe	33
PID 636 wrote to memory of 1756	636	chrome.exe	33
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34
PID 636 wrote to memory of 560	636	chrome.exe	34

C:\Users\Admin\AppData\Local\Temp\master_me.exe
"C:\Users\Admin\AppData\Local\Temp\master_me.exe"
1⤵
PID:1996

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:636
- 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,0x7fef6bf9758,0x7fef6bf9768,0x7fef6bf9778
  2⤵
  PID:580
- 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=1272,i,4381552378187270391,1514118144234582612,131072 /prefetch:2
  2⤵
  PID:1544
- 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=1524 --field-trial-handle=1272,i,4381552378187270391,1514118144234582612,131072 /prefetch:8
  2⤵
  PID:1756
- 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=1580 --field-trial-handle=1272,i,4381552378187270391,1514118144234582612,131072 /prefetch:8
  2⤵
  PID:560
- 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=2308 --field-trial-handle=1272,i,4381552378187270391,1514118144234582612,131072 /prefetch:1
  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 --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=2240 --field-trial-handle=1272,i,4381552378187270391,1514118144234582612,131072 /prefetch:1
  2⤵
  PID:112
- 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=1452 --field-trial-handle=1272,i,4381552378187270391,1514118144234582612,131072 /prefetch:2
  2⤵
  PID:2064
- 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=1444 --field-trial-handle=1272,i,4381552378187270391,1514118144234582612,131072 /prefetch:1
  2⤵
  PID:2160
- 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=3880 --field-trial-handle=1272,i,4381552378187270391,1514118144234582612,131072 /prefetch:8
  2⤵
  PID:2224
- 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=4048 --field-trial-handle=1272,i,4381552378187270391,1514118144234582612,131072 /prefetch:8
  2⤵
  PID:2248
- 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=4116 --field-trial-handle=1272,i,4381552378187270391,1514118144234582612,131072 /prefetch:1
  2⤵
  PID:2384

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:1616

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\5ff70aa2-7ff3-41e5-b558-a824fdeef486.tmp

Filesize
173KB

MD5
ac3044becbd42736c018f275bd8cb795

SHA1
ee217a9a14348f841c4f2674e5c94656ddd06149

SHA256
428cb8e86ac9b619021ce148116b1d7e6dcc7f253a026a3f6e58e84102073951

SHA512
57e0a015105afb21987157acde44826876b0ba004b8c4548cf5e68cd91eb5772b6e5c1ce8b8c7ae3d849639ff0e1cb65451bd55b68dee2ddea21e701fc6277ac

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
4KB

MD5
c66d924f5cca2d261a39316d837b6cb8

SHA1
106096f96e07445f7a10c037adc30b529e89844f

SHA256
d7797510a5b520598370c65a7c74df8c4a77b9bc54fe79ae551afc8d6979c0d8

SHA512
70ff33275573748f09840f77274d0358e57b746eeceb18755f84c1d9ca38e0e6d999eb403356c03f0b98df7baa192747973b28b3a818a43d075a6dc43321401f

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\metadata\000004.dbtmp

Filesize
16B

MD5
6752a1d65b201c13b62ea44016eb221f

SHA1
58ecf154d01a62233ed7fb494ace3c3d4ffce08b

SHA256
0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

SHA512
9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

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

Filesize
173KB

MD5
b824aa4522d0f6179c82c91c5f543110

SHA1
ac2845acd393091b8bb22d94b98f5061be74bae4

SHA256
8fb80cb78e203090cd17db46117db0654d78f26bde33c7a4b6bee870c8da0d61

SHA512
529b5fee76a177fa905b3b609b68429b48b0062d5789b00008716955b34d226fcb64ace5734e5353129580af342214ee9c3dac7ead9d8a6fc71b97d763cc56ba

Download Submit
memory/1996-54-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download