umbral | 03dbbb05e1588d2303720a4edfb8cb0c6dfef922b85ed66d43b67cde6bc68c3e

Resubmissions

28-07-2023 16:30

230728-tz3snseh4y 10

28-07-2023 16:28

230728-ty4ctaec58 10

Analysis

max time kernel
23s
max time network
29s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
28-07-2023 16:30

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General

Target

Ice.exe
Size

228KB
MD5

5f25397473870629f943edcc0b137281
SHA1

368474f6392f0547bc02b138fe199a7b005d0122
SHA256

03dbbb05e1588d2303720a4edfb8cb0c6dfef922b85ed66d43b67cde6bc68c3e
SHA512

de326d719bb44fade2693afbdf79b8f89a38f4405eadf087bf75a049af27195cda9b8b2b1bae0c254d7202f3f2539217201389135b5255584e16ecb8eb6af1e7
SSDEEP

6144:RloZM+rIkd8g+EtXHkv/iD4v2AsbhS6FiAxDeebdyb8e1m/i:joZtL+EP8v2AsbhS6FiAxDeeb4h

Score

10^/10

umbral stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/936-55-0x0000000000360000-0x00000000003A0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral

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
2796	chrome.exe
2796	chrome.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	936	Ice.exe
Token: SeIncreaseQuotaPrivilege	3056	wmic.exe
Token: SeSecurityPrivilege	3056	wmic.exe
Token: SeTakeOwnershipPrivilege	3056	wmic.exe
Token: SeLoadDriverPrivilege	3056	wmic.exe
Token: SeSystemProfilePrivilege	3056	wmic.exe
Token: SeSystemtimePrivilege	3056	wmic.exe
Token: SeProfSingleProcessPrivilege	3056	wmic.exe
Token: SeIncBasePriorityPrivilege	3056	wmic.exe
Token: SeCreatePagefilePrivilege	3056	wmic.exe
Token: SeBackupPrivilege	3056	wmic.exe
Token: SeRestorePrivilege	3056	wmic.exe
Token: SeShutdownPrivilege	3056	wmic.exe
Token: SeDebugPrivilege	3056	wmic.exe
Token: SeSystemEnvironmentPrivilege	3056	wmic.exe
Token: SeRemoteShutdownPrivilege	3056	wmic.exe
Token: SeUndockPrivilege	3056	wmic.exe
Token: SeManageVolumePrivilege	3056	wmic.exe
Token: 33	3056	wmic.exe
Token: 34	3056	wmic.exe
Token: 35	3056	wmic.exe
Token: SeIncreaseQuotaPrivilege	3056	wmic.exe
Token: SeSecurityPrivilege	3056	wmic.exe
Token: SeTakeOwnershipPrivilege	3056	wmic.exe
Token: SeLoadDriverPrivilege	3056	wmic.exe
Token: SeSystemProfilePrivilege	3056	wmic.exe
Token: SeSystemtimePrivilege	3056	wmic.exe
Token: SeProfSingleProcessPrivilege	3056	wmic.exe
Token: SeIncBasePriorityPrivilege	3056	wmic.exe
Token: SeCreatePagefilePrivilege	3056	wmic.exe
Token: SeBackupPrivilege	3056	wmic.exe
Token: SeRestorePrivilege	3056	wmic.exe
Token: SeShutdownPrivilege	3056	wmic.exe
Token: SeDebugPrivilege	3056	wmic.exe
Token: SeSystemEnvironmentPrivilege	3056	wmic.exe
Token: SeRemoteShutdownPrivilege	3056	wmic.exe
Token: SeUndockPrivilege	3056	wmic.exe
Token: SeManageVolumePrivilege	3056	wmic.exe
Token: 33	3056	wmic.exe
Token: 34	3056	wmic.exe
Token: 35	3056	wmic.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe
2796	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 936 wrote to memory of 3056	936	Ice.exe	30
PID 936 wrote to memory of 3056	936	Ice.exe	30
PID 936 wrote to memory of 3056	936	Ice.exe	30
PID 2796 wrote to memory of 2836	2796	chrome.exe	34
PID 2796 wrote to memory of 2836	2796	chrome.exe	34
PID 2796 wrote to memory of 2836	2796	chrome.exe	34
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 2856	2796	chrome.exe	35
PID 2796 wrote to memory of 3044	2796	chrome.exe	36
PID 2796 wrote to memory of 3044	2796	chrome.exe	36
PID 2796 wrote to memory of 3044	2796	chrome.exe	36
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37
PID 2796 wrote to memory of 2740	2796	chrome.exe	37

C:\Users\Admin\AppData\Local\Temp\Ice.exe
"C:\Users\Admin\AppData\Local\Temp\Ice.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:936
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3056

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 FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2796
- 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,0x7fef6b79758,0x7fef6b79768,0x7fef6b79778
  2⤵
  PID:2836
- 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=1184 --field-trial-handle=1316,i,2180771773600107022,17609751990881435878,131072 /prefetch:2
  2⤵
  PID:2856
- 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=1460 --field-trial-handle=1316,i,2180771773600107022,17609751990881435878,131072 /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=1616 --field-trial-handle=1316,i,2180771773600107022,17609751990881435878,131072 /prefetch:8
  2⤵
  PID:2740
- 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=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2196 --field-trial-handle=1316,i,2180771773600107022,17609751990881435878,131072 /prefetch:1
  2⤵
  PID:292
- 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=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2204 --field-trial-handle=1316,i,2180771773600107022,17609751990881435878,131072 /prefetch:1
  2⤵
  PID:2356
- 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=1172 --field-trial-handle=1316,i,2180771773600107022,17609751990881435878,131072 /prefetch:2
  2⤵
  PID:2680
- 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=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3212 --field-trial-handle=1316,i,2180771773600107022,17609751990881435878,131072 /prefetch:1
  2⤵
  PID:2000
- 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=3500 --field-trial-handle=1316,i,2180771773600107022,17609751990881435878,131072 /prefetch:8
  2⤵
  PID:1472
- 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=3612 --field-trial-handle=1316,i,2180771773600107022,17609751990881435878,131072 /prefetch:8
  2⤵
  PID:964

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:600

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

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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\Site Characteristics Database\000007.dbtmp

Filesize
16B

MD5
18e723571b00fb1694a3bad6c78e4054

SHA1
afcc0ef32d46fe59e0483f9a3c891d3034d12f32

SHA256
8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

SHA512
43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

Download Submit
memory/936-54-0x000007FEF5920000-0x000007FEF630C000-memory.dmp

Filesize
9.9MB

Download
memory/936-55-0x0000000000360000-0x00000000003A0000-memory.dmp

Filesize
256KB

Download
memory/936-56-0x000000001B110000-0x000000001B190000-memory.dmp

Filesize
512KB

Download
memory/936-57-0x000007FEF5920000-0x000007FEF630C000-memory.dmp

Filesize
9.9MB

Download