hxxps://outlook[.]office365[.]com/owa/zGlobalProviderAVDUsers@corrohealth[.]com/groupsubscription[.]ashx?realm=corrohealth[.]com&source=WelcomeEmail&sourceversion=V3&action=conversations&subaction=gotogroup

Analysis

max time kernel
28s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29/12/2023, 04:10

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General

Target

https://outlook.office365.com/owa/[email protected]/groupsubscription.ashx?realm=corrohealth.com&source=WelcomeEmail&sourceversion=V3&action=conversations&subaction=gotogroup

Score

1^/10

Malware Config

Signatures

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
2852	chrome.exe
2852	chrome.exe

Suspicious use of AdjustPrivilegeToken 54 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe
Token: SeShutdownPrivilege	2852	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe
2852	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 2956	2852	chrome.exe	28
PID 2852 wrote to memory of 2956	2852	chrome.exe	28
PID 2852 wrote to memory of 2956	2852	chrome.exe	28
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 2828	2852	chrome.exe	30
PID 2852 wrote to memory of 3044	2852	chrome.exe	31
PID 2852 wrote to memory of 3044	2852	chrome.exe	31
PID 2852 wrote to memory of 3044	2852	chrome.exe	31
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32
PID 2852 wrote to memory of 2496	2852	chrome.exe	32

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://outlook.office365.com/owa/[email protected]/groupsubscription.ashx?realm=corrohealth.com&source=WelcomeEmail&sourceversion=V3&action=conversations&subaction=gotogroup
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:2852
- 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,0x7fef6d39758,0x7fef6d39768,0x7fef6d39778
  2⤵
  PID:2956
- 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=1288,i,16856629147705873585,14354024472438031729,131072 /prefetch:2
  2⤵
  PID:2828
- 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,16856629147705873585,14354024472438031729,131072 /prefetch:8
  2⤵
  PID:3044
- 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=1604 --field-trial-handle=1288,i,16856629147705873585,14354024472438031729,131072 /prefetch:8
  2⤵
  PID:2496
- 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=2276 --field-trial-handle=1288,i,16856629147705873585,14354024472438031729,131072 /prefetch:1
  2⤵
  PID:672
- 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=2296 --field-trial-handle=1288,i,16856629147705873585,14354024472438031729,131072 /prefetch:1
  2⤵
  PID:1176
- 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=1404 --field-trial-handle=1288,i,16856629147705873585,14354024472438031729,131072 /prefetch:2
  2⤵
  PID:2028
- 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=3152 --field-trial-handle=1288,i,16856629147705873585,14354024472438031729,131072 /prefetch:1
  2⤵
  PID:1604
- 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=9 --mojo-platform-channel-handle=2448 --field-trial-handle=1288,i,16856629147705873585,14354024472438031729,131072 /prefetch:1
  2⤵
  PID:1468
- 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=4100 --field-trial-handle=1288,i,16856629147705873585,14354024472438031729,131072 /prefetch:8
  2⤵
  PID:744

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:2664

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\Local\Google\Chrome\User Data\Default\0f445f0d-b87a-4b4d-97bd-f6884f1a38f3.tmp

Filesize
4KB

MD5
8588dd87b3c5570eb0b0b51954d718fe

SHA1
25f4c375873defe241c1bd3966c5cd1381c391d3

SHA256
dac50dd2bab959e05e2358232601794f414e9b9669f7ba528e7a1bfc4bfab684

SHA512
4782646f6ed0fac9bc166de0dd4b4db1eaab9a93907bf0cac08e8e6d87d07e73f601e6eb2ec2c4b1c776fc499df96d4f8975c4c98518f5ab6a9ee0302b01e99d

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

Filesize
1002B

MD5
293712b68746c52ef6c7d359e9d848b4

SHA1
fedc787cc34c041ed46311f39a47e244849980bd

SHA256
5b52ffb631542f087ac7d0b3237b3c34be0ed6e70783f561ad85b47102e237af

SHA512
dc9c9f934db883061aa94abf0334d67aab69bcb41ed6229af725ba1d515c575fbd0fa617a941defa0fb3c012cf7d890c2f9fa597290ab98a6fd2905331bd8bb9

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

Filesize
4KB

MD5
58252429fa9ac97e68cf424d02c7404e

SHA1
cf95c18ee445fd5ffc8e45a690ef88ed2d357318

SHA256
a1bb1879947aec318433ae65b4559c0f0c10fabb70b505997495b0411f4c8a16

SHA512
63ada78ff54f50f3b536cbd4a638818c4150135ca064e5724498734180d824f5bfdc9be5c399eb892b0d155bde1a1a273e006a9e278f31f97121df40c99b8bdf

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\ShaderCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab72D1.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar7728.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit