662aa5533d68b67b9c4a3df2ede43fc3248689364ad91bb7375a6aad469537ac

Analysis

max time kernel
20s
max time network
138s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-09-2024 18:27

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General

Target

Krunkify Loader (1.19).exe
Size

39.1MB
MD5

b9f745b1526b29439fdd38ce6b2bc742
SHA1

bc4d96ab019f20b1f27f9c42b28335881b12667b
SHA256

662aa5533d68b67b9c4a3df2ede43fc3248689364ad91bb7375a6aad469537ac
SHA512

59ecbbc8dd57e0967d23dca59a224a114f9e2774b25b8334123434e5244828b2e24372f18c2274693c2005ef0b07b77b3893492409e41884290b89dbf7574ea8
SSDEEP

786432:drUx++qTptDALygrfynGsEweceyuTZ3gPEFOuvR1q+6fCvp6LM5F8/TYS+pdGDg2:FHADfst7CyuZ3fr6fCvrDgTzs8

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1648	Stub.exe

Loads dropped DLL 2 IoCs

pid	Process
1968	Krunkify Loader (1.19).exe
1648	Stub.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
2932	chrome.exe
2932	chrome.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe
Token: SeShutdownPrivilege	2932	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe
2932	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 1648	1968	Krunkify Loader (1.19).exe	30
PID 1968 wrote to memory of 1648	1968	Krunkify Loader (1.19).exe	30
PID 1968 wrote to memory of 1648	1968	Krunkify Loader (1.19).exe	30
PID 2932 wrote to memory of 2592	2932	chrome.exe	33
PID 2932 wrote to memory of 2592	2932	chrome.exe	33
PID 2932 wrote to memory of 2592	2932	chrome.exe	33
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 2044	2932	chrome.exe	35
PID 2932 wrote to memory of 1512	2932	chrome.exe	36
PID 2932 wrote to memory of 1512	2932	chrome.exe	36
PID 2932 wrote to memory of 1512	2932	chrome.exe	36
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37
PID 2932 wrote to memory of 2896	2932	chrome.exe	37

C:\Users\Admin\AppData\Local\Temp\Krunkify Loader (1.19).exe
"C:\Users\Admin\AppData\Local\Temp\Krunkify Loader (1.19).exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\onefile_1968_133714168575740000\Stub.exe
  "C:\Users\Admin\AppData\Local\Temp\Krunkify Loader (1.19).exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1648

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:2932
- 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,0x7fef6f49758,0x7fef6f49768,0x7fef6f49778
  2⤵
  PID:2592
- 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=1164 --field-trial-handle=1020,i,4808548438984349511,6338668539397024361,131072 /prefetch:2
  2⤵
  PID:2044
- 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=1020,i,4808548438984349511,6338668539397024361,131072 /prefetch:8
  2⤵
  PID:1512
- 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=1576 --field-trial-handle=1020,i,4808548438984349511,6338668539397024361,131072 /prefetch:8
  2⤵
  PID:2896
- 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=2132 --field-trial-handle=1020,i,4808548438984349511,6338668539397024361,131072 /prefetch:1
  2⤵
  PID:300
- 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=2172 --field-trial-handle=1020,i,4808548438984349511,6338668539397024361,131072 /prefetch:1
  2⤵
  PID:2908
- 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=1448 --field-trial-handle=1020,i,4808548438984349511,6338668539397024361,131072 /prefetch:2
  2⤵
  PID:972
- 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=3224 --field-trial-handle=1020,i,4808548438984349511,6338668539397024361,131072 /prefetch:1
  2⤵
  PID:1940
- 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=3660 --field-trial-handle=1020,i,4808548438984349511,6338668539397024361,131072 /prefetch:8
  2⤵
  PID:2552

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:3008

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:2476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

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\Network Persistent State

Filesize
987B

MD5
f1dc9eac417df7d6362d5218b053126d

SHA1
34c80d098ea658f421e265a0c24199408385a947

SHA256
7a58fecec3e752159c457742355c4da27849f62cd9cc60fdf9346a2173255839

SHA512
6a3b2ee91e8602182691390aa0dbd124caf834e3ace697550b3297369821a9c611577d2fa628ea1de44973cc5a327d1c94142c8fd773ed5d011278281a4f46c1

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

Filesize
5KB

MD5
a702fd7bedbf60fb1f4cd542d4825379

SHA1
0331d8845ca65a06a1e5aebd9b6d6edc1a679445

SHA256
972735c92f08d4c4c47398b72507c672c419fe3225e8de8c6ab1384dcec99e0e

SHA512
8323e6fd8f2f28e1323078b9a23cb8a93e0534dc7100a36e6c361b220c1f44c0b7dbe51aace50060446d5c3a6212146ca071f637fed503a952ea1e7da2e55d04

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

Filesize
5KB

MD5
3357ef449dd27828a350b964adbce493

SHA1
9b662fc068132798add4beba1158ec209230a132

SHA256
29a12f02e37c45292923b748c2dc2cb09d5d4b02188249fb12a640cd91beb38e

SHA512
4e92c166cda21148010c215b8c98dd44408270f4532cfcb903d77318de33caddabb9246dfb5f6e8fd2aee193c9b1d3381cd788cafc5a6a08f9293c7582d95888

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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
\Users\Admin\AppData\Local\Temp\onefile_1968_133714168575740000\python311.dll

Filesize
5.5MB

MD5
5a5dd7cad8028097842b0afef45bfbcf

SHA1
e247a2e460687c607253949c52ae2801ff35dc4a

SHA256
a811c7516f531f1515d10743ae78004dd627eba0dc2d3bc0d2e033b2722043ce

SHA512
e6268e4fad2ce3ef16b68298a57498e16f0262bf3531539ad013a66f72df471569f94c6fcc48154b7c3049a3ad15cbfcbb6345dacb4f4ed7d528c74d589c9858

Download Submit