66b28bfd0d3b0012f291627dad4bb74e650b54ae24a44906125527fad4d1ed62

Analysis

max time kernel
1194s
max time network
1211s
platform
windows10-2004_x64
resource
win10v2004-20240704-es
resource tags

arch:x64arch:x86image:win10v2004-20240704-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
08-07-2024 04:59

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General

Target

Tool/x64/fix1.exe
Size

7.0MB
MD5

150f7378fd18d19ecc002761fa112de5
SHA1

a5ef247183d14dcd0d9b112306c1965c38720a1e
SHA256

b3bfd7d408a13096897fe8cbaff158cb8ff34f6d2d2269b25a1a268daeef387c
SHA512

dd3739f3e7736c6d6319dbf71346addfdab60d668c84b91d9c87bdf5ee7c6ea085b49a314c52338cb196cceb212067fdbf804da91d9f517a34e1b0978ceebb6d
SSDEEP

196608:YrUXA1HeT39IigDvKub75bcjWgbkzf7AkjdW86:k1+TtIisvB5IjWqkzZ

Score

7^/10

persistence pyinstaller

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

fix1.exefix1.exe

pid process

4600 fix1.exe
3044 fix1.exe

pid	process
4600	fix1.exe
3044	fix1.exe

Loads dropped DLL 16 IoCs

Processes:

fix1.exefix1.exe

pid	process
4140	fix1.exe
4140	fix1.exe
4140	fix1.exe
4140	fix1.exe
4140	fix1.exe
4140	fix1.exe
4140	fix1.exe
3044	fix1.exe
3044	fix1.exe
3044	fix1.exe
3044	fix1.exe
3044	fix1.exe
3044	fix1.exe
3044	fix1.exe
3044	fix1.exe
3044	fix1.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fix1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-661257284-3186977026-4220467887-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Update64 = "C:\\Users\\Admin\\fix1.exe"	fix1.exe

Detects Pyinstaller 1 IoCs

pyinstaller

Processes:

resource	yara_rule
C:\Users\Admin\fix1.exe	pyinstaller

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4628 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4628 taskkill.exe

pid	process
4628	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4628	taskkill.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

fix1.exefix1.execmd.exefix1.exe

description	pid	process	target process
PID 1548 wrote to memory of 4140	1548	fix1.exe	fix1.exe
PID 1548 wrote to memory of 4140	1548	fix1.exe	fix1.exe
PID 4140 wrote to memory of 2956	4140	fix1.exe	cmd.exe
PID 4140 wrote to memory of 2956	4140	fix1.exe	cmd.exe
PID 2956 wrote to memory of 4628	2956	cmd.exe	taskkill.exe
PID 2956 wrote to memory of 4628	2956	cmd.exe	taskkill.exe
PID 2956 wrote to memory of 4600	2956	cmd.exe	fix1.exe
PID 2956 wrote to memory of 4600	2956	cmd.exe	fix1.exe
PID 4600 wrote to memory of 3044	4600	fix1.exe	fix1.exe
PID 4600 wrote to memory of 3044	4600	fix1.exe	fix1.exe

C:\Users\Admin\AppData\Local\Temp\Tool\x64\fix1.exe
"C:\Users\Admin\AppData\Local\Temp\Tool\x64\fix1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1548

C:\Users\Admin\AppData\Local\Temp\Tool\x64\fix1.exe
"C:\Users\Admin\AppData\Local\Temp\Tool\x64\fix1.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4140

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\activate.bat
3⤵
- Suspicious use of WriteProcessMemory
PID:2956

C:\Windows\system32\taskkill.exe
taskkill /f /im "fix1.exe"
4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4628

C:\Users\Admin\fix1.exe
"fix1.exe"
4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4600

C:\Users\Admin\fix1.exe
"fix1.exe"
5⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
PID:3044

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=es --service-sandbox-type=asset_store_service --field-trial-handle=4256,i,16137636041123227657,6836372490512237287,262144 --variations-seed-version --mojo-platform-channel-handle=4268 /prefetch:8
1⤵
PID:116

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=es --service-sandbox-type=asset_store_service --field-trial-handle=4076,i,16137636041123227657,6836372490512237287,262144 --variations-seed-version --mojo-platform-channel-handle=4576 /prefetch:8
1⤵
PID:3500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_MEI15482\VCRUNTIME140.dll

Filesize
116KB

MD5
be8dbe2dc77ebe7f88f910c61aec691a

SHA1
a19f08bb2b1c1de5bb61daf9f2304531321e0e40

SHA256
4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83

SHA512
0da644472b374f1da449a06623983d0477405b5229e386accadb154b43b8b083ee89f07c3f04d2c0c7501ead99ad95aecaa5873ff34c5eeb833285b598d5a655

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\_bz2.pyd

Filesize
82KB

MD5
59d60a559c23202beb622021af29e8a9

SHA1
a405f23916833f1b882f37bdbba2dd799f93ea32

SHA256
706d4a0c26dd454538926cbb2ff6c64257c3d9bd48c956f7cabd6def36ffd13e

SHA512
2f60e79603cf456b2a14b8254cec75ce8be0a28d55a874d4fb23d92d63bbe781ed823ab0f4d13a23dc60c4df505cbf1dbe1a0a2049b02e4bdec8d374898002b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\_ctypes.pyd

Filesize
122KB

MD5
2a834c3738742d45c0a06d40221cc588

SHA1
606705a593631d6767467fb38f9300d7cd04ab3e

SHA256
f20dfa748b878751ea1c4fe77a230d65212720652b99c4e5577bce461bbd9089

SHA512
924235a506ce4d635fa7c2b34e5d8e77eff73f963e58e29c6ef89db157bf7bab587678bb2120d09da70594926d82d87dbaa5d247e861e331cf591d45ea19a117

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\_decimal.pyd

Filesize
246KB

MD5
f930b7550574446a015bc602d59b0948

SHA1
4ee6ff8019c6c540525bdd2790fc76385cdd6186

SHA256
3b9ad1d2bc9ec03d37da86135853dac73b3fe851b164fe52265564a81eb8c544

SHA512
10b864975945d6504433554f9ff11b47218caa00f809c6bce00f9e4089b862190a4219f659697a4ba5e5c21edbe1d8d325950921e09371acc4410469bd9189ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\_hashlib.pyd

Filesize
64KB

MD5
b0262bd89a59a3699bfa75c4dcc3ee06

SHA1
eb658849c646a26572dea7f6bfc042cb62fb49dc

SHA256
4adfbbd6366d9b55d902fc54d2b42e7c8c989a83016ed707bd7a302fc3fc7b67

SHA512
2e4b214de3b306e3a16124af434ff8f5ab832aa3eeb1aa0aa9b49b0ada0928dcbb05c57909292fbe3b01126f4cd3fe0dac9cc15eaea5f3844d6e267865b9f7b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\_lzma.pyd

Filesize
155KB

MD5
b71dbe0f137ffbda6c3a89d5bcbf1017

SHA1
a2e2bdc40fdb83cc625c5b5e8a336ca3f0c29c5f

SHA256
6216173194b29875e84963cd4dc4752f7ca9493f5b1fd7e4130ca0e411c8ac6a

SHA512
9a5c7b1e25d8e1b5738f01aedfd468c1837f1ac8dd4a5b1d24ce86dcae0db1c5b20f2ff4280960bc523aee70b71db54fd515047cdaf10d21a8bec3ebd6663358

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\_socket.pyd

Filesize
81KB

MD5
9c6283cc17f9d86106b706ec4ea77356

SHA1
af4f2f52ce6122f340e5ea1f021f98b1ffd6d5b6

SHA256
5cc62aac52edf87916deb4ebbad9abb58a6a3565b32e7544f672aca305c38027

SHA512
11fd6f570dd78f8ff00be645e47472a96daffa3253e8bd29183bccde3f0746f7e436a106e9a68c57cc05b80a112365441d06cc719d51c906703b428a32c93124

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\_wmi.pyd

Filesize
35KB

MD5
c1654ebebfeeda425eade8b77ca96de5

SHA1
a4a150f1c810077b6e762f689c657227cc4fd257

SHA256
aa1443a715fbf84a84f39bd89707271fc11a77b597d7324ce86fc5cfa56a63a9

SHA512
21705b991e75efd5e59b8431a3b19ae5fcc38a3e7f137a9d52acd24e7f67d61758e48abc1c9c0d4314fa02010a1886c15ead5bca8dca1b1d4ccbfc3c589d342e

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\base_library.zip

Filesize
1.3MB

MD5
630153ac2b37b16b8c5b0dbb69a3b9d6

SHA1
f901cd701fe081489b45d18157b4a15c83943d9d

SHA256
ec4e6b8e9f6f1f4b525af72d3a6827807c7a81978cb03db5767028ebea283be2

SHA512
7e3a434c8df80d32e66036d831cbd6661641c0898bd0838a07038b460261bf25b72a626def06d0faa692caf64412ca699b1fa7a848fe9d969756e097cba39e41

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\libcrypto-3.dll

Filesize
5.0MB

MD5
e547cf6d296a88f5b1c352c116df7c0c

SHA1
cafa14e0367f7c13ad140fd556f10f320a039783

SHA256
05fe080eab7fc535c51e10c1bd76a2f3e6217f9c91a25034774588881c3f99de

SHA512
9f42edf04c7af350a00fa4fdf92b8e2e6f47ab9d2d41491985b20cd0adde4f694253399f6a88f4bdd765c4f49792f25fb01e84ec03fd5d0be8bb61773d77d74d

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\libffi-8.dll

Filesize
38KB

MD5
0f8e4992ca92baaf54cc0b43aaccce21

SHA1
c7300975df267b1d6adcbac0ac93fd7b1ab49bd2

SHA256
eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a

SHA512
6e1b223462dc124279bfca74fd2c66fe18b368ffbca540c84e82e0f5bcbea0e10cc243975574fa95ace437b9d8b03a446ed5ee0c9b1b094147cefaf704dfe978

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\python312.dll

Filesize
6.7MB

MD5
550288a078dffc3430c08da888e70810

SHA1
01b1d31f37fb3fd81d893cc5e4a258e976f5884f

SHA256
789a42ac160cef98f8925cb347473eeeb4e70f5513242e7faba5139ba06edf2d

SHA512
7244432fc3716f7ef27630d4e8fbc8180a2542aa97a01d44dca260ab43966dd8ac98b6023400b0478a4809aace1a128f1f4d6e544f2e591a5b436fd4c8a9d723

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\select.pyd

Filesize
29KB

MD5
8a273f518973801f3c63d92ad726ec03

SHA1
069fc26b9bd0f6ea3f9b3821ad7c812fd94b021f

SHA256
af358285a7450de6e2e5e7ff074f964d6a257fb41d9eb750146e03c7dda503ca

SHA512
7fedae0573ecb3946ede7d0b809a98acad3d4c95d6c531a40e51a31bdb035badc9f416d8aaa26463784ff2c5e7a0cc2c793d62b5fdb2b8e9fad357f93d3a65f8

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI15482\unicodedata.pyd

Filesize
1.1MB

MD5
04f35d7eec1f6b72bab9daf330fd0d6b

SHA1
ecf0c25ba7adf7624109e2720f2b5930cd2dba65

SHA256
be942308d99cc954931fe6f48ed8cc7a57891ccbe99aae728121bcda1fd929ab

SHA512
3da405e4c1371f4b265e744229dcc149491a112a2b7ea8e518d5945f8c259cad15583f25592b35ec8a344e43007ae00da9673822635ee734d32664f65c9c8d9b

Download Submit
C:\Users\Admin\activate.bat

Filesize
83B

MD5
4c483a47143202b467470be273d52cbc

SHA1
8b24747b7f4206aaf0a01539cc862e788b3e7e90

SHA256
245b5bf29eaf5a3d744f33b38f0964c97af662d733b40b86dd65bd181fa2b472

SHA512
55f9d25b447e2e0c52f782721a05505c7a2096beb8051d45df15a7997ecade27ee17efc679c072fe5be1577b26ad214cb8823e42fa5efcd8ad6c6611483f14f1

Download Submit
C:\Users\Admin\fix1.exe

Filesize
7.0MB

MD5
150f7378fd18d19ecc002761fa112de5

SHA1
a5ef247183d14dcd0d9b112306c1965c38720a1e

SHA256
b3bfd7d408a13096897fe8cbaff158cb8ff34f6d2d2269b25a1a268daeef387c

SHA512
dd3739f3e7736c6d6319dbf71346addfdab60d668c84b91d9c87bdf5ee7c6ea085b49a314c52338cb196cceb212067fdbf804da91d9f517a34e1b0978ceebb6d

Download Submit