a3c3eee8c519fabe86fcfaa4e83d4b944a7292181b255970bf5c25a09368edf6

Analysis

max time kernel
146s
max time network
134s
platform
windows10_x64
resource
win10v20210410
submitted
06-06-2021 18:30

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General

Target

nitrogencheck.exe
Size

7.1MB
MD5

832d37c3757d34a27886202e955a7a4d
SHA1

52964da3839cda914b0238ba55303c57962346fc
SHA256

a3c3eee8c519fabe86fcfaa4e83d4b944a7292181b255970bf5c25a09368edf6
SHA512

ea72e648c11f21ae8a9cd104ea2c016e7af2f7990b517f213924fc90a5de7f9bdba9eb947fe28478f22f08a29fe176be017631ebd304a6bb7958e3d2b43fbe74

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 15 IoCs

Processes:

nitrogencheck.exe

pid	process
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe
1564	nitrogencheck.exe

Opens file in notepad (likely ransom note) 2 IoCs
ransomware

Processes:

NOTEPAD.EXENOTEPAD.EXE

pid process

1840 NOTEPAD.EXE
2464 NOTEPAD.EXE

pid	process
1840	NOTEPAD.EXE
2464	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

nitrogencheck.exenitrogencheck.exe

description	pid	process	target process
PID 3724 wrote to memory of 1564	3724	nitrogencheck.exe	nitrogencheck.exe
PID 3724 wrote to memory of 1564	3724	nitrogencheck.exe	nitrogencheck.exe
PID 1564 wrote to memory of 4040	1564	nitrogencheck.exe	cmd.exe
PID 1564 wrote to memory of 4040	1564	nitrogencheck.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\nitrogencheck.exe
"C:\Users\Admin\AppData\Local\Temp\nitrogencheck.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3724

C:\Users\Admin\AppData\Local\Temp\nitrogencheck.exe
"C:\Users\Admin\AppData\Local\Temp\nitrogencheck.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1564

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
3⤵
PID:4040

C:\Windows\System32\NOTEPAD.EXE
"C:\Windows\System32\NOTEPAD.EXE" C:\Users\Admin\Desktop\UnlockStop.cmd
1⤵
- Opens file in notepad (likely ransom note)
PID:1840

C:\Windows\System32\NOTEPAD.EXE
"C:\Windows\System32\NOTEPAD.EXE" C:\Users\Admin\Desktop\UnlockEdit.cmd
1⤵
- Opens file in notepad (likely ransom note)
PID:2464

C:\Windows\system32\werfault.exe
werfault.exe /h /shared Global\6641c640bcbc4d5b94e33eea9674d0a3 /t 2404 /p 2464
1⤵
PID:2660

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\UnlockEdit.cmd" "
1⤵
PID:3944

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\UnlockStop.cmd" "
1⤵
PID:2252

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_MEI37242\VCRUNTIME140.dll
MD5
4a365ffdbde27954e768358f4a4ce82e

SHA1
a1b31102eee1d2a4ed1290da2038b7b9f6a104a3

SHA256
6a0850419432735a98e56857d5cfce97e9d58a947a9863ca6afadd1c7bcab27c

SHA512
54e4b6287c4d5a165509047262873085f50953af63ca0dcb7649c22aba5b439ab117a7e0d6e7f0a3e51a23e28a255ffd1ca1ddce4b2ea7f87bca1c9b0dbe2722

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\_bz2.pyd
MD5
e91b4f8e1592da26bacaceb542a220a8

SHA1
5459d4c2147fa6db75211c3ec6166b869738bd38

SHA256
20895fa331712701ebfdbb9ab87e394309e910f1d782929fd65b59ed76d9c90f

SHA512
cb797fa758c65358e5b0fef739181f6b39e0629758a6f8d5c4bd7dc6422001769a19df0c746724fb2567a58708b18bbd098327bfbdf3378426049b113eb848e9

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\_ctypes.pyd
MD5
6fe3827e6704443e588c2701568b5f89

SHA1
ac9325fd29dead82ccd30be3ee7ee91c3aaeb967

SHA256
73acf2e0e28040cd696255abd53caaa811470b17a07c7b4d5a94f346b7474391

SHA512
be2502c006a615df30e61bea138bd1afca30640f39522d18db94df293c71df0a86c88df5fd5d8407daf1ccea6fac012d086212a3b80b8c32ede33b937881533a

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\_hashlib.pyd
MD5
7c69cb3cb3182a97e3e9a30d2241ebed

SHA1
1b8754ff57a14c32bcadc330d4880382c7fffc93

SHA256
12a84bacb071b1948a9f751ac8d0653ba71a8f6b217a69fe062608e532065c20

SHA512
96dbabbc6b98d473cbe06dcd296f6c6004c485e57ac5ba10560a377393875192b22df8a7103fe4a22795b8d81b8b0ae14ce7646262f87cb609b9e2590a93169e

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\_lzma.pyd
MD5
493c33ddf375b394b648c4283b326481

SHA1
59c87ee582ba550f064429cb26ad79622c594f08

SHA256
6384ded31408788d35a89dc3f7705ea2928f6bbdeb8b627f0d1b2d7b1ea13e16

SHA512
a4a83f04c7fc321796ce6a932d572dca1ad6ecefd31002320aeaa2453701ed49ef9f0d9ba91c969737565a6512b94fbb0311aee53d355345a03e98f43e6f98b2

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\_queue.pyd
MD5
103a38f7fbf0da48b8611af309188011

SHA1
1db9e2cb2a92243da12efdca617499eb93ddcbf8

SHA256
3bc50ac551635b9ce6fbcddea5d3d621c1216e49e9958fa24546ab8f6f2d111a

SHA512
2e6c4b9786034cbf6a6d94761ed31807657ee10edd679147c838a2e6e97a0c13acd6e59bc6e69edf1ca725f12e0f972a0de0ae4b331da46dccd687c59096a250

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\_socket.pyd
MD5
fd1cfe0f0023c5780247f11d8d2802c9

SHA1
5b29a3b4c6edb6fa176077e1f1432e3b0178f2bc

SHA256
258a5f0b4d362b2fed80b24eeabcb3cdd1602e32ff79d87225da6d15106b17a6

SHA512
b304a2e56829a557ec401c6fdda78d6d05b7495a610c1ed793d6b25fc5af891cb2a1581addb27ab5e2a6cb0be24d9678f67b97828015161bc875df9b7b5055ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\_ssl.pyd
MD5
34b1d4db44fc3b29e8a85dd01432535f

SHA1
3189c207370622c97c7c049c97262d59c6487983

SHA256
e4aa33b312cec5aa5a0b064557576844879e0dccc40047c9d0a769a1d03f03f6

SHA512
f5f3dcd48d01aa56bd0a11eee02c21546440a59791ced2f85cdac81da1848ef367a93ef4f10fa52331ee2edea93cbcc95a0f94c0ccefa5d19e04ae5013563aee

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\base_library.zip
MD5
dc1b529c08922e4812f714899d15b570

SHA1
4aae3300cb3556033e22cdb47b65d1518c4dd888

SHA256
faca55ba76983313bc00e8044be99332c13b58398c377c09108999d6bf339a6a

SHA512
2aed265d4723a8e97ac2fbed6bae1475605631f67f7987ca464b7c582b45d4cabb82ae0928396c0f756257e2c09c9b583b08bf36622f7a7694ea856101fb825c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\certifi\cacert.pem
MD5
3dcd08b803fbb28231e18b5d1eef4258

SHA1
b81ea40b943cd8a0c341f3a13e5bc05090b5a72a

SHA256
de2fa17c4d8ae68dc204a1b6b58b7a7a12569367cfeb8a3a4e1f377c73e83e9e

SHA512
9cc7106e921fbcf8c56745b38051a5a56154c600e3c553f2e64d93ec988c88b17f6d49698bdc18e3aa57ae96a79ee2c08c584c7c4c91cc6ea72db3dca6ccc2f5

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\libcrypto-1_1.dll
MD5
89511df61678befa2f62f5025c8c8448

SHA1
df3961f833b4964f70fcf1c002d9fd7309f53ef8

SHA256
296426e7ce11bc3d1cfa9f2aeb42f60c974da4af3b3efbeb0ba40e92e5299fdf

SHA512
9af069ea13551a4672fdd4635d3242e017837b76ab2815788148dd4c44b4cf3a650d43ac79cd2122e1e51e01fb5164e71ff81a829395bdb8e50bb50a33f0a668

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\libffi-7.dll
MD5
eef7981412be8ea459064d3090f4b3aa

SHA1
c60da4830ce27afc234b3c3014c583f7f0a5a925

SHA256
f60dd9f2fcbd495674dfc1555effb710eb081fc7d4cae5fa58c438ab50405081

SHA512
dc9ff4202f74a13ca9949a123dff4c0223da969f49e9348feaf93da4470f7be82cfa1d392566eaaa836d77dde7193fed15a8395509f72a0e9f97c66c0a096016

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\libssl-1_1.dll
MD5
50bcfb04328fec1a22c31c0e39286470

SHA1
3a1b78faf34125c7b8d684419fa715c367db3daa

SHA256
fddd0da02dcd41786e9aa04ba17ba391ce39dae6b1f54cfa1e2bb55bc753fce9

SHA512
370e6dfd318d905b79baf1808efbf6da58590f00006513bdaaed0c313f6fa6c36f634ea3b05f916cee59f4db25a23dd9e6f64caf3c04a200e78c193027f57685

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\python39.dll
MD5
5cd203d356a77646856341a0c9135fc6

SHA1
a1f4ac5cc2f5ecb075b3d0129e620784814a48f7

SHA256
a56afcf5f3a72769c77c3bc43c9b84197180a8b3380b6258073223bfd72ed47a

SHA512
390008d57fa711d7c88b77937bf16fdb230e7c1e7182faea6d7c206e9f65ced6f2e835f9da9befb941e80624abe45875602e0e7ad485d9a009d2450a2a0e0f1f

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\select.pyd
MD5
0e3cf5d792a3f543be8bbc186b97a27a

SHA1
50f4c70fce31504c6b746a2c8d9754a16ebc8d5e

SHA256
c7ffae6dc927cf10ac5da08614912bb3ad8fc52aa0ef9bc376d831e72dd74460

SHA512
224b42e05b4dbdf7275ee7c5d3eb190024fc55e22e38bd189c1685efee2a3dd527c6dfcb2feeec525b8d6dc35aded1eac2423ed62bb2599bb6a9ea34e842c340

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI37242\unicodedata.pyd
MD5
7af51031368619638cca688a7275db14

SHA1
64e2cc5ac5afe8a65af690047dc03858157e964c

SHA256
7f02a99a23cc3ff63ecb10ba6006e2da7bf685530bad43882ebf90d042b9eeb6

SHA512
fbde24501288ff9b06fc96faff5e7a1849765df239e816774c04a4a6ef54a0c641adf4325bfb116952082d3234baef12288174ad8c18b62407109f29aa5ab326

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\VCRUNTIME140.dll
MD5
4a365ffdbde27954e768358f4a4ce82e

SHA1
a1b31102eee1d2a4ed1290da2038b7b9f6a104a3

SHA256
6a0850419432735a98e56857d5cfce97e9d58a947a9863ca6afadd1c7bcab27c

SHA512
54e4b6287c4d5a165509047262873085f50953af63ca0dcb7649c22aba5b439ab117a7e0d6e7f0a3e51a23e28a255ffd1ca1ddce4b2ea7f87bca1c9b0dbe2722

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\_bz2.pyd
MD5
e91b4f8e1592da26bacaceb542a220a8

SHA1
5459d4c2147fa6db75211c3ec6166b869738bd38

SHA256
20895fa331712701ebfdbb9ab87e394309e910f1d782929fd65b59ed76d9c90f

SHA512
cb797fa758c65358e5b0fef739181f6b39e0629758a6f8d5c4bd7dc6422001769a19df0c746724fb2567a58708b18bbd098327bfbdf3378426049b113eb848e9

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\_ctypes.pyd
MD5
6fe3827e6704443e588c2701568b5f89

SHA1
ac9325fd29dead82ccd30be3ee7ee91c3aaeb967

SHA256
73acf2e0e28040cd696255abd53caaa811470b17a07c7b4d5a94f346b7474391

SHA512
be2502c006a615df30e61bea138bd1afca30640f39522d18db94df293c71df0a86c88df5fd5d8407daf1ccea6fac012d086212a3b80b8c32ede33b937881533a

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\_hashlib.pyd
MD5
7c69cb3cb3182a97e3e9a30d2241ebed

SHA1
1b8754ff57a14c32bcadc330d4880382c7fffc93

SHA256
12a84bacb071b1948a9f751ac8d0653ba71a8f6b217a69fe062608e532065c20

SHA512
96dbabbc6b98d473cbe06dcd296f6c6004c485e57ac5ba10560a377393875192b22df8a7103fe4a22795b8d81b8b0ae14ce7646262f87cb609b9e2590a93169e

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\_lzma.pyd
MD5
493c33ddf375b394b648c4283b326481

SHA1
59c87ee582ba550f064429cb26ad79622c594f08

SHA256
6384ded31408788d35a89dc3f7705ea2928f6bbdeb8b627f0d1b2d7b1ea13e16

SHA512
a4a83f04c7fc321796ce6a932d572dca1ad6ecefd31002320aeaa2453701ed49ef9f0d9ba91c969737565a6512b94fbb0311aee53d355345a03e98f43e6f98b2

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\_queue.pyd
MD5
103a38f7fbf0da48b8611af309188011

SHA1
1db9e2cb2a92243da12efdca617499eb93ddcbf8

SHA256
3bc50ac551635b9ce6fbcddea5d3d621c1216e49e9958fa24546ab8f6f2d111a

SHA512
2e6c4b9786034cbf6a6d94761ed31807657ee10edd679147c838a2e6e97a0c13acd6e59bc6e69edf1ca725f12e0f972a0de0ae4b331da46dccd687c59096a250

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\_socket.pyd
MD5
fd1cfe0f0023c5780247f11d8d2802c9

SHA1
5b29a3b4c6edb6fa176077e1f1432e3b0178f2bc

SHA256
258a5f0b4d362b2fed80b24eeabcb3cdd1602e32ff79d87225da6d15106b17a6

SHA512
b304a2e56829a557ec401c6fdda78d6d05b7495a610c1ed793d6b25fc5af891cb2a1581addb27ab5e2a6cb0be24d9678f67b97828015161bc875df9b7b5055ae

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\_ssl.pyd
MD5
34b1d4db44fc3b29e8a85dd01432535f

SHA1
3189c207370622c97c7c049c97262d59c6487983

SHA256
e4aa33b312cec5aa5a0b064557576844879e0dccc40047c9d0a769a1d03f03f6

SHA512
f5f3dcd48d01aa56bd0a11eee02c21546440a59791ced2f85cdac81da1848ef367a93ef4f10fa52331ee2edea93cbcc95a0f94c0ccefa5d19e04ae5013563aee

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\libcrypto-1_1.dll
MD5
89511df61678befa2f62f5025c8c8448

SHA1
df3961f833b4964f70fcf1c002d9fd7309f53ef8

SHA256
296426e7ce11bc3d1cfa9f2aeb42f60c974da4af3b3efbeb0ba40e92e5299fdf

SHA512
9af069ea13551a4672fdd4635d3242e017837b76ab2815788148dd4c44b4cf3a650d43ac79cd2122e1e51e01fb5164e71ff81a829395bdb8e50bb50a33f0a668

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\libcrypto-1_1.dll
MD5
89511df61678befa2f62f5025c8c8448

SHA1
df3961f833b4964f70fcf1c002d9fd7309f53ef8

SHA256
296426e7ce11bc3d1cfa9f2aeb42f60c974da4af3b3efbeb0ba40e92e5299fdf

SHA512
9af069ea13551a4672fdd4635d3242e017837b76ab2815788148dd4c44b4cf3a650d43ac79cd2122e1e51e01fb5164e71ff81a829395bdb8e50bb50a33f0a668

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\libffi-7.dll
MD5
eef7981412be8ea459064d3090f4b3aa

SHA1
c60da4830ce27afc234b3c3014c583f7f0a5a925

SHA256
f60dd9f2fcbd495674dfc1555effb710eb081fc7d4cae5fa58c438ab50405081

SHA512
dc9ff4202f74a13ca9949a123dff4c0223da969f49e9348feaf93da4470f7be82cfa1d392566eaaa836d77dde7193fed15a8395509f72a0e9f97c66c0a096016

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\libssl-1_1.dll
MD5
50bcfb04328fec1a22c31c0e39286470

SHA1
3a1b78faf34125c7b8d684419fa715c367db3daa

SHA256
fddd0da02dcd41786e9aa04ba17ba391ce39dae6b1f54cfa1e2bb55bc753fce9

SHA512
370e6dfd318d905b79baf1808efbf6da58590f00006513bdaaed0c313f6fa6c36f634ea3b05f916cee59f4db25a23dd9e6f64caf3c04a200e78c193027f57685

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\python39.dll
MD5
5cd203d356a77646856341a0c9135fc6

SHA1
a1f4ac5cc2f5ecb075b3d0129e620784814a48f7

SHA256
a56afcf5f3a72769c77c3bc43c9b84197180a8b3380b6258073223bfd72ed47a

SHA512
390008d57fa711d7c88b77937bf16fdb230e7c1e7182faea6d7c206e9f65ced6f2e835f9da9befb941e80624abe45875602e0e7ad485d9a009d2450a2a0e0f1f

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\select.pyd
MD5
0e3cf5d792a3f543be8bbc186b97a27a

SHA1
50f4c70fce31504c6b746a2c8d9754a16ebc8d5e

SHA256
c7ffae6dc927cf10ac5da08614912bb3ad8fc52aa0ef9bc376d831e72dd74460

SHA512
224b42e05b4dbdf7275ee7c5d3eb190024fc55e22e38bd189c1685efee2a3dd527c6dfcb2feeec525b8d6dc35aded1eac2423ed62bb2599bb6a9ea34e842c340

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI37242\unicodedata.pyd
MD5
7af51031368619638cca688a7275db14

SHA1
64e2cc5ac5afe8a65af690047dc03858157e964c

SHA256
7f02a99a23cc3ff63ecb10ba6006e2da7bf685530bad43882ebf90d042b9eeb6

SHA512
fbde24501288ff9b06fc96faff5e7a1849765df239e816774c04a4a6ef54a0c641adf4325bfb116952082d3234baef12288174ad8c18b62407109f29aa5ab326

Download Submit
memory/1564-114-0x0000000000000000-mapping.dmp

Download
memory/4040-145-0x0000000000000000-mapping.dmp

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