0101981095cefb1272f7cc27dfe55ac8d0b1417c79dd7d6fdcbaddd917649986

Resubmissions

14-01-2024 21:31

240114-1c7xfaebc9 10

Analysis

max time kernel
332s
max time network
318s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14-01-2024 21:31

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General

Target

LEmu Download/NitroGenerator.exe
Size

14.7MB
MD5

5734f0e4d4f3206f635f4956f2f6d8b7
SHA1

ed907967147a9fae785084c5a7538ec86667114a
SHA256

afefa950275a01596246bc734f8e010c314a713d79c2f20f3a460c59352f9b42
SHA512

46126f1427f790907454e745b857721b81392d32bb560ef5e6a6cb3eeb62260072554fa63cad811b45d3b9537e77a2d9553ddf9e5c3628a56b0fe875c15d4b10
SSDEEP

393216:qwvpEkZQMidQuslSq99oWOv+9fgriEt8nUdw:qUphQ3dQuSDorvSYriPn/

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2492	NitroGenerator.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 4 IoCs

pid	Process
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe
Token: SeShutdownPrivilege	2324	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe
2324	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2492	2132	NitroGenerator.exe	28
PID 2132 wrote to memory of 2492	2132	NitroGenerator.exe	28
PID 2132 wrote to memory of 2492	2132	NitroGenerator.exe	28
PID 2324 wrote to memory of 2308	2324	chrome.exe	34
PID 2324 wrote to memory of 2308	2324	chrome.exe	34
PID 2324 wrote to memory of 2308	2324	chrome.exe	34
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 1096	2324	chrome.exe	36
PID 2324 wrote to memory of 960	2324	chrome.exe	37
PID 2324 wrote to memory of 960	2324	chrome.exe	37
PID 2324 wrote to memory of 960	2324	chrome.exe	37
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38
PID 2324 wrote to memory of 1504	2324	chrome.exe	38

C:\Users\Admin\AppData\Local\Temp\LEmu Download\NitroGenerator.exe
"C:\Users\Admin\AppData\Local\Temp\LEmu Download\NitroGenerator.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Users\Admin\AppData\Local\Temp\LEmu Download\NitroGenerator.exe
  "C:\Users\Admin\AppData\Local\Temp\LEmu Download\NitroGenerator.exe"
  2⤵
  - Loads dropped DLL
  PID:2492

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:776

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:2324
- 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,0x7fef6719758,0x7fef6719768,0x7fef6719778
  2⤵
  PID:2308
- 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=1168 --field-trial-handle=1384,i,14396765733562566558,11299338103761167645,131072 /prefetch:2
  2⤵
  PID:1096
- 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=1520 --field-trial-handle=1384,i,14396765733562566558,11299338103761167645,131072 /prefetch:8
  2⤵
  PID:960
- 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=1632 --field-trial-handle=1384,i,14396765733562566558,11299338103761167645,131072 /prefetch:8
  2⤵
  PID:1504
- 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=2264 --field-trial-handle=1384,i,14396765733562566558,11299338103761167645,131072 /prefetch:1
  2⤵
  PID:1636
- 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=2276 --field-trial-handle=1384,i,14396765733562566558,11299338103761167645,131072 /prefetch:1
  2⤵
  PID:1556
- 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=1536 --field-trial-handle=1384,i,14396765733562566558,11299338103761167645,131072 /prefetch:2
  2⤵
  PID:2720
- 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=2836 --field-trial-handle=1384,i,14396765733562566558,11299338103761167645,131072 /prefetch:1
  2⤵
  PID:2672
- 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=3476 --field-trial-handle=1384,i,14396765733562566558,11299338103761167645,131072 /prefetch:8
  2⤵
  PID:1788
- 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=3592 --field-trial-handle=1384,i,14396765733562566558,11299338103761167645,131072 /prefetch:8
  2⤵
  PID:2216
- 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=3708 --field-trial-handle=1384,i,14396765733562566558,11299338103761167645,131072 /prefetch:8
  2⤵
  PID:2912

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:2396

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\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
ea3be76cd381b92f73e32cf47b444318

SHA1
e246bdb3e896a8d0ef6a4da939a479c529d6fb66

SHA256
d2b5a1521aa0640a268352c8c66ce308a25da46a5e8d7e8068dc76f1102507f9

SHA512
388875369444ce82c2727aa3db62567b8ba5029e0ee6d6cd529c8ef81242318c677971d91c9766ae8d33735594552c2d1c97cdd5a792c4088df63f4de4a88282

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

Filesize
4KB

MD5
2c06bbd754601564989bc9f084a6e62a

SHA1
5b9fa6441875d89b7c84c8fd56e0c51c61314327

SHA256
522690e8431225a27661908aed735855ab4c1b615121bc12b8bd6b90aa36c838

SHA512
457273a0c4d132442165d3a313de0d135cb6113e8967902e30ee997293aed51ce886816d4fedf3dd1b02679070a3cd3730c1b02230a19fd6ba245fa558ba4116

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
C:\Users\Admin\AppData\Local\Temp\_MEI21322\python310.dll

Filesize
4.3MB

MD5
deaf0c0cc3369363b800d2e8e756a402

SHA1
3085778735dd8badad4e39df688139f4eed5f954

SHA256
156cf2b64dd0f4d9bdb346b654a11300d6e9e15a65ef69089923dafc1c71e33d

SHA512
5cac1d92af7ee18425b5ee8e7cd4e941a9ddffb4bc1c12bb8aeabeed09acec1ff0309abc41a2e0c8db101fee40724f8bfb27a78898128f8746c8fe01c1631989

Download Submit