f4d4286a5b93621dac280247aa449c39a018aa4295e6f2c6a8dc80dfcfa64bf7

max time kernel
1s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
26-11-2024 14:13

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

nezurr.exe
Size

7.5MB
MD5

92c47cbd15a6099a4da50d726015508c
SHA1

91e8ab7d6c699f8ed8247705d03cec2c3d9b97d8
SHA256

f4d4286a5b93621dac280247aa449c39a018aa4295e6f2c6a8dc80dfcfa64bf7
SHA512

00f7b1ff896e034108c4e66812605dbbcf3eaef712823a561ffc642282b45a5838bf706e449b42381f794ccb0aa74e41fcc72ecfe28b5e37e31fff24800e3946
SSDEEP

196608:qWgeIvwfI9jUC2gYBYv3vbWvGPI63p1e5zf:CaIH2gYBgDWgpwVf

Score

7^/10

upx

Malware Config

Signatures

Loads dropped DLL 9 IoCs

Processes:

nezurr.exe

pid	Process
2888	nezurr.exe
2888	nezurr.exe
2888	nezurr.exe
2888	nezurr.exe
2888	nezurr.exe
2888	nezurr.exe
2888	nezurr.exe
2888	nezurr.exe
2888	nezurr.exe

UPX packed file 29 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/files/0x001900000002aae9-21.dat	upx
behavioral1/memory/2888-25-0x00007FFF339C0000-0x00007FFF34085000-memory.dmp	upx
behavioral1/files/0x001900000002aad6-27.dat	upx
behavioral1/files/0x001c00000002aae7-31.dat	upx
behavioral1/files/0x001c00000002aae1-48.dat	upx
behavioral1/files/0x001900000002aae0-47.dat	upx
behavioral1/files/0x001900000002aadd-46.dat	upx
behavioral1/files/0x001900000002aadc-45.dat	upx
behavioral1/files/0x001c00000002aadb-44.dat	upx
behavioral1/files/0x001900000002aada-43.dat	upx
behavioral1/files/0x001900000002aad7-42.dat	upx
behavioral1/files/0x001d00000002aad5-41.dat	upx
behavioral1/files/0x001900000002aaf2-40.dat	upx
behavioral1/files/0x001900000002aaef-39.dat	upx
behavioral1/files/0x001900000002aaee-38.dat	upx
behavioral1/files/0x001900000002aae8-35.dat	upx
behavioral1/memory/2888-32-0x00007FFF4F060000-0x00007FFF4F06F000-memory.dmp	upx
behavioral1/memory/2888-30-0x00007FFF48960000-0x00007FFF48985000-memory.dmp	upx
behavioral1/files/0x001900000002aae6-34.dat	upx
behavioral1/memory/2888-54-0x00007FFF45AF0000-0x00007FFF45B1D000-memory.dmp	upx
behavioral1/memory/2888-56-0x00007FFF4AE50000-0x00007FFF4AE6A000-memory.dmp	upx
behavioral1/memory/2888-58-0x00007FFF44F80000-0x00007FFF44FA4000-memory.dmp	upx
behavioral1/memory/2888-60-0x00007FFF33670000-0x00007FFF337EF000-memory.dmp	upx
behavioral1/memory/2888-64-0x00007FFF497B0000-0x00007FFF497BD000-memory.dmp	upx
behavioral1/memory/2888-63-0x00007FFF4AC70000-0x00007FFF4AC89000-memory.dmp	upx
behavioral1/memory/2888-68-0x00007FFF339C0000-0x00007FFF34085000-memory.dmp	upx
behavioral1/memory/2888-71-0x00007FFF33130000-0x00007FFF33663000-memory.dmp	upx
behavioral1/memory/2888-70-0x00007FFF33060000-0x00007FFF3312E000-memory.dmp	upx
behavioral1/memory/2888-69-0x00007FFF44F40000-0x00007FFF44F73000-memory.dmp	upx

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

nezurr.exe

description	pid	Process	procid_target
PID 4200 wrote to memory of 2888	4200	nezurr.exe	79
PID 4200 wrote to memory of 2888	4200	nezurr.exe	79

C:\Users\Admin\AppData\Local\Temp\nezurr.exe
"C:\Users\Admin\AppData\Local\Temp\nezurr.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4200
- C:\Users\Admin\AppData\Local\Temp\nezurr.exe
  "C:\Users\Admin\AppData\Local\Temp\nezurr.exe"
  2⤵
  - Loads dropped DLL
  PID:2888

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\_MEI42002\VCRUNTIME140.dll

Filesize
116KB

MD5
be8dbe2dc77ebe7f88f910c61aec691a

SHA1
a19f08bb2b1c1de5bb61daf9f2304531321e0e40

SHA256
4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83

SHA512
0da644472b374f1da449a06623983d0477405b5229e386accadb154b43b8b083ee89f07c3f04d2c0c7501ead99ad95aecaa5873ff34c5eeb833285b598d5a655

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\_bz2.pyd

Filesize
48KB

MD5
adaa3e7ab77129bbc4ed3d9c4adee584

SHA1
21aabd32b9cbfe0161539454138a43d5dbc73b65

SHA256
a1d8ce2c1efaa854bb0f9df43ebccf861ded6f8afb83c9a8b881904906359f55

SHA512
b73d3aba135fb5e0d907d430266754da2f02e714264cd4a33c1bfdeda4740bbe82d43056f1a7a85f4a8ed28cb7798693512b6d4cdb899ce65b6d271cf5e5e264

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\_ctypes.pyd

Filesize
59KB

MD5
0f090d4159937400db90f1512fda50c8

SHA1
01cbcb413e50f3c204901dff7171998792133583

SHA256
ae6512a770673e268554363f2d1d2a202d0a337baf233c3e63335026d223be31

SHA512
151156a28d023cf68fd38cbecbe1484fc3f6bf525e7354fcced294f8e479e07453fd3fc22a6b8d049ddf0ad6306d2c7051ece4e7de1137578541a9aabefe3f12

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\_decimal.pyd

Filesize
107KB

MD5
a592ba2bb04f53b47d87b4f7b0c8b328

SHA1
ca8c65ab0aab0f98af8cc1c1cf31c9744e56a33c

SHA256
19fe4a08b0b321ff9413da88e519f4a4a4510481605b250f2906a32e8bb14938

SHA512
1576fdc90d8678da0dab8253fdd8ec8b3ce924fa392f35d8c62207a85c31c26dae5524e983e97872933538551cbef9cd4ba9206bcd16f2ae0858ab11574d09e0

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\_hashlib.pyd

Filesize
35KB

MD5
4dd4c7d3a7b954a337607b8b8c4a21d1

SHA1
b6318b830d73cbf9fa45be2915f852b5a5d81906

SHA256
926692fcecdb7e65a14ac0786e1f58e880ea8dae7f7bb3aa7f2c758c23f2af70

SHA512
dab02496c066a70a98334e841a0164df1a6e72e890ce66be440b10fdeecdfe7b8d0ec39d1af402ae72c8aa19763c92dd7404f3a829c9fdcf871c01b1aed122e1

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\_lzma.pyd

Filesize
86KB

MD5
17082c94b383bca187eb13487425ec2c

SHA1
517df08af5c283ca08b7545b446c6c2309f45b8b

SHA256
ddbfef8da4a0d8c1c8c24d171de65b9f4069e2edb8f33ef5dfecf93cb2643bd4

SHA512
2b565d595e9a95aefae396fc7d66ee0aeb9bfe3c23d64540ba080ba39a484ab1c50f040161896cca6620c182f0b02a9db677dab099dca3cae863e6e2542bb12c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\_queue.pyd

Filesize
26KB

MD5
97cc5797405f90b20927e29867bc3c4f

SHA1
a2e7d2399cca252cc54fc1609621d441dff1ace5

SHA256
fb304ca68b41e573713abb012196ef1ae2d5b5e659d846bbf46b1f13946c2a39

SHA512
77780fe0951473762990cbef056b3bba36cda9299b1a7d31d9059a792f13b1a072ce3ab26d312c59805a7a2e9773b7300b406fd3af5e2d1270676a7862b9ca48

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\_socket.pyd

Filesize
44KB

MD5
f52c1c015fb147729a7caab03b2f64f4

SHA1
8aebc2b18a02f1c6c7494271f7f9e779014bee31

SHA256
06d91ac02b00a29180f4520521de2f7de2593dd9c52e1c2b294e717c826a1b7d

SHA512
8ab076c551f0a6ffe02c26b4f0fbb2ea7756d4650fe39f53d7bd61f4cb6ae81460d46d8535c89c6d626e7c605882b39843f7f70dd50e9daf27af0f8cadd49c0f

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\_sqlite3.pyd

Filesize
57KB

MD5
37a88a19bb1de9cf33141872c2c534cb

SHA1
a9209ec10af81913d9fd1d0dd6f1890d275617e8

SHA256
cca0fbe5268ab181bf8afbdc4af258d0fbd819317a78ddd1f58bef7d2f197350

SHA512
3a22064505b80b51ebaa0d534f17431f9449c8f2b155ec794f9c4f5508470576366ed3ba5d2de7ddf1836c6e638f26cad8cb0cc496daf30ee38ca97557238733

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\_ssl.pyd

Filesize
66KB

MD5
34402efc9a34b91768cf1280cc846c77

SHA1
20553a06fe807c274b0228ec6a6a49a11ec8b7c1

SHA256
fe52c34028c5d62430ea7a9be034557ccfecdddda9c57874f2832f584fedb031

SHA512
2b8a50f67b5d29db3e300bc0dd670dad0ba069afa9acf566cad03b8a993a0e49f1e28059737d3b21cef2321a13eff12249c80fa46832939d2bf6d8555490e99c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\base_library.zip

Filesize
1.3MB

MD5
7fe4248421b2b2635fae84c194710e83

SHA1
34fdf7ff6f0a4eeab23e809949445571ebb5c70a

SHA256
bdc1f95f0bb15cc6c9c2268ba5c1c31af9bdc2d4272c898231c3861dd3b81415

SHA512
3b7b147068aaa1e26ea515cd2b99c1c924d86a32cd3021018a6c4e482307912c6c470c2e3da9c3ec0b45a5ebca626b3a853cfbca62ddf8b5e485a8310438873f

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\blank.aes

Filesize
110KB

MD5
a6bc8ec42e151686acfa1e2a9ad8cceb

SHA1
07038a36b7556d003f75bb0b1e6a74475aa49333

SHA256
2a68cfba7dddab3bb681845b7250ee7780f40772bca8db55b7e75f7f5c4d2e9f

SHA512
bc7f77d79f30fe2122d85f5a2d126444c2a12b9e42e13a08a868544c8ef40b51ebb523663083b0fbf0fa0d43f9271288a8e6c0017a5b344ef6fdaa9579730887

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\libcrypto-3.dll

Filesize
1.6MB

MD5
8377fe5949527dd7be7b827cb1ffd324

SHA1
aa483a875cb06a86a371829372980d772fda2bf9

SHA256
88e8aa1c816e9f03a3b589c7028319ef456f72adb86c9ddca346258b6b30402d

SHA512
c59d0cbe8a1c64f2c18b5e2b1f49705d079a2259378a1f95f7a368415a2dc3116e0c3c731e9abfa626d12c02b9e0d72c98c1f91a359f5486133478144fa7f5f7

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\libffi-8.dll

Filesize
29KB

MD5
08b000c3d990bc018fcb91a1e175e06e

SHA1
bd0ce09bb3414d11c91316113c2becfff0862d0d

SHA256
135c772b42ba6353757a4d076ce03dbf792456143b42d25a62066da46144fece

SHA512
8820d297aeda5a5ebe1306e7664f7a95421751db60d71dc20da251bcdfdc73f3fd0b22546bd62e62d7aa44dfe702e4032fe78802fb16ee6c2583d65abc891cbf

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\libssl-3.dll

Filesize
221KB

MD5
b2e766f5cf6f9d4dcbe8537bc5bded2f

SHA1
331269521ce1ab76799e69e9ae1c3b565a838574

SHA256
3cc6828e7047c6a7eff517aa434403ea42128c8595bf44126765b38200b87ce4

SHA512
5233c8230497aadb9393c3ee5049e4ab99766a68f82091fe32393ee980887ebd4503bf88847c462c40c3fc786f8d179dac5cb343b980944ade43bc6646f5ad5a

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\python312.dll

Filesize
1.7MB

MD5
6f7c42579f6c2b45fe866747127aef09

SHA1
b9487372fe3ed61022e52cc8dbd37e6640e87723

SHA256
07642b6a3d99ce88cff790087ac4e2ba0b2da1100cf1897f36e096427b580ee5

SHA512
aadf06fd6b4e14f600b0a614001b8c31e42d71801adec7c9c177dcbb4956e27617fa45ba477260a7e06d2ca4979ed5acc60311258427ee085e8025b61452acec

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\rar.exe

Filesize
615KB

MD5
9c223575ae5b9544bc3d69ac6364f75e

SHA1
8a1cb5ee02c742e937febc57609ac312247ba386

SHA256
90341ac8dcc9ec5f9efe89945a381eb701fe15c3196f594d9d9f0f67b4fc2213

SHA512
57663e2c07b56024aaae07515ee3a56b2f5068ebb2f2dc42be95d1224376c2458da21c965aab6ae54de780cb874c2fc9de83d9089abf4536de0f50faca582d09

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\rarreg.key

Filesize
456B

MD5
4531984cad7dacf24c086830068c4abe

SHA1
fa7c8c46677af01a83cf652ef30ba39b2aae14c3

SHA256
58209c8ab4191e834ffe2ecd003fd7a830d3650f0fd1355a74eb8a47c61d4211

SHA512
00056f471945d838ef2ce56d51c32967879fe54fcbf93a237ed85a98e27c5c8d2a39bc815b41c15caace2071edd0239d775a31d1794dc4dba49e7ecff1555122

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\select.pyd

Filesize
25KB

MD5
9a59688220e54fec39a6f81da8d0bfb0

SHA1
07a3454b21a831916e3906e7944232512cf65bc1

SHA256
50e969e062a80917f575af0fe47c458586ebce003cf50231c4c3708da8b5f105

SHA512
7cb7a039a0a1a7111c709d22f6e83ab4cb8714448daddb4d938c0d4692fa8589baa1f80a6a0eb626424b84212da59275a39e314a0e6ccaae8f0be1de4b7b994e

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\sqlite3.dll

Filesize
644KB

MD5
de562be5de5b7f3a441264d4f0833694

SHA1
b55717b5cd59f5f34965bc92731a6cea8a65fd20

SHA256
b8273963f55e7bf516f129ac7cf7b41790dffa0f4a16b81b5b6e300aa0142f7e

SHA512
baf1fbdd51d66ea473b56c82e181582bf288129c7698fc058f043ccfbcec1a28f69d89d3cfbfee77a16d3a3fd880b3b18fd46f98744190d5b229b06cf07c975a

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42002\unicodedata.pyd

Filesize
296KB

MD5
2730c614d83b6a018005778d32f4faca

SHA1
611735e993c3cc73ecccb03603e329d513d5678a

SHA256
baa76f6fd87d7a79148e32d3ae38f1d1fe5a98804b86e636902559e87b316e48

SHA512
9b391a62429cd4c40a34740ddb04fa4d8130f69f970bb94fa815485b9da788bca28681ec7d19e493af7c99a2f3bf92c3b53339ef43ad815032d4991f99cc8c45

Download Submit
memory/2888-56-0x00007FFF4AE50000-0x00007FFF4AE6A000-memory.dmp

Filesize
104KB

Download
memory/2888-30-0x00007FFF48960000-0x00007FFF48985000-memory.dmp

Filesize
148KB

Download
memory/2888-25-0x00007FFF339C0000-0x00007FFF34085000-memory.dmp

Filesize
6.8MB

Download
memory/2888-54-0x00007FFF45AF0000-0x00007FFF45B1D000-memory.dmp

Filesize
180KB

Download
memory/2888-32-0x00007FFF4F060000-0x00007FFF4F06F000-memory.dmp

Filesize
60KB

Download
memory/2888-58-0x00007FFF44F80000-0x00007FFF44FA4000-memory.dmp

Filesize
144KB

Download
memory/2888-60-0x00007FFF33670000-0x00007FFF337EF000-memory.dmp

Filesize
1.5MB

Download
memory/2888-64-0x00007FFF497B0000-0x00007FFF497BD000-memory.dmp

Filesize
52KB

Download
memory/2888-63-0x00007FFF4AC70000-0x00007FFF4AC89000-memory.dmp

Filesize
100KB

Download
memory/2888-68-0x00007FFF339C0000-0x00007FFF34085000-memory.dmp

Filesize
6.8MB

Download
memory/2888-71-0x00007FFF33130000-0x00007FFF33663000-memory.dmp

Filesize
5.2MB

Download
memory/2888-70-0x00007FFF33060000-0x00007FFF3312E000-memory.dmp

Filesize
824KB

Download
memory/2888-69-0x00007FFF44F40000-0x00007FFF44F73000-memory.dmp

Filesize
204KB

Download