609741c0ed4e7c4eb4182f861b1d58136720313a6e399bdba10feca87e13d209

Analysis

max time kernel
134s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-10-2024 18:32

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General

Target

sef.exe
Size

12.2MB
MD5

0715f24b40570cc14aa83d5bf0370561
SHA1

a93bff8229cfe9d168203a881085ae217fb9c564
SHA256

609741c0ed4e7c4eb4182f861b1d58136720313a6e399bdba10feca87e13d209
SHA512

eb6a050ccf862b551bdc8b279a0849b96a636c3861beea599936b3dd07134a1767904232dca8ee9a145b5487d8747a25e7372e763ed4d9e7c1342353f138c166
SSDEEP

393216:rKjS/sjgIZRiK1piXLGVELsRjXnsgyYdZdo:rmbfDiXHQRzddo

Score

7^/10

upx

Malware Config

Signatures

Loads dropped DLL 8 IoCs

Processes:

sef.exe

pid process

4916 sef.exe
4916 sef.exe
4916 sef.exe
4916 sef.exe
4916 sef.exe
4916 sef.exe
4916 sef.exe
4916 sef.exe

pid	process
4916	sef.exe
4916	sef.exe
4916	sef.exe
4916	sef.exe
4916	sef.exe
4916	sef.exe
4916	sef.exe
4916	sef.exe

UPX packed file 39 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\_MEI49842\python313.dll	upx
behavioral2/memory/4916-49-0x00007FFC4B620000-0x00007FFC4BC83000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_ctypes.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\libffi-8.dll	upx
behavioral2/memory/4916-55-0x00007FFC5F950000-0x00007FFC5F977000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_bz2.pyd	upx
behavioral2/memory/4916-56-0x00007FFC64350000-0x00007FFC6435F000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_lzma.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_hashlib.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\libcrypto-3.dll	upx
behavioral2/memory/4916-83-0x00007FFC5B000000-0x00007FFC5B014000-memory.dmp	upx
behavioral2/memory/4916-85-0x00007FFC4AF20000-0x00007FFC4B453000-memory.dmp	upx
behavioral2/memory/4916-81-0x00007FFC5B470000-0x00007FFC5B49B000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_wmi.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_ssl.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_sqlite3.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_socket.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_queue.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_overlapped.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_multiprocessing.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_elementtree.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_decimal.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_asyncio.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\unicodedata.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\sqlite3.dll	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\select.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\pyexpat.pyd	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\libssl-3.dll	upx
C:\Users\Admin\AppData\Local\Temp\_MEI49842\libopus-0.x64.dll	upx
behavioral2/memory/4916-60-0x00007FFC60AF0000-0x00007FFC60B09000-memory.dmp	upx
behavioral2/memory/4916-86-0x00007FFC4B620000-0x00007FFC4BC83000-memory.dmp	upx
behavioral2/memory/4916-87-0x00007FFC5F950000-0x00007FFC5F977000-memory.dmp	upx
behavioral2/memory/4916-94-0x00007FFC4AF20000-0x00007FFC4B453000-memory.dmp	upx
behavioral2/memory/4916-93-0x00007FFC5B000000-0x00007FFC5B014000-memory.dmp	upx
behavioral2/memory/4916-92-0x00007FFC5B470000-0x00007FFC5B49B000-memory.dmp	upx
behavioral2/memory/4916-91-0x00007FFC60AF0000-0x00007FFC60B09000-memory.dmp	upx
behavioral2/memory/4916-90-0x00007FFC64350000-0x00007FFC6435F000-memory.dmp	upx
behavioral2/memory/4916-89-0x00007FFC5F950000-0x00007FFC5F977000-memory.dmp	upx
behavioral2/memory/4916-88-0x00007FFC4B620000-0x00007FFC4BC83000-memory.dmp	upx

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

sef.exe

description pid process target process

PID 4984 wrote to memory of 4916 4984 sef.exe sef.exe
PID 4984 wrote to memory of 4916 4984 sef.exe sef.exe

description	pid	process	target process
PID 4984 wrote to memory of 4916	4984	sef.exe	sef.exe
PID 4984 wrote to memory of 4916	4984	sef.exe	sef.exe

C:\Users\Admin\AppData\Local\Temp\sef.exe
"C:\Users\Admin\AppData\Local\Temp\sef.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Users\Admin\AppData\Local\Temp\sef.exe
  "C:\Users\Admin\AppData\Local\Temp\sef.exe"
  2⤵
  - Loads dropped DLL
  PID:4916

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_MEI49842\VCRUNTIME140.dll

Filesize
117KB

MD5
862f820c3251e4ca6fc0ac00e4092239

SHA1
ef96d84b253041b090c243594f90938e9a487a9a

SHA256
36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153

SHA512
2f8a0f11bccc3a8cb99637deeda0158240df0885a230f38bb7f21257c659f05646c6b61e993f87e0877f6ba06b347ddd1fc45d5c44bc4e309ef75ed882b82e4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\VCRUNTIME140_1.dll

Filesize
48KB

MD5
68156f41ae9a04d89bb6625a5cd222d4

SHA1
3be29d5c53808186eba3a024be377ee6f267c983

SHA256
82a2f9ae1e6146ae3cb0f4bc5a62b7227e0384209d9b1aef86bbcc105912f7cd

SHA512
f7bf8ad7cd8b450050310952c56f6a20b378a972c822ccc253ef3d7381b56ffb3ca6ce3323bea9872674ed1c02017f78ab31e9eb9927fc6b3cba957c247e5d57

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_asyncio.pyd

Filesize
37KB

MD5
c5bc781fe3c55a6744f10e714c31f021

SHA1
9241ada83969670d375f14aa99faefb6fb985b3d

SHA256
920dd5db4b8d1cb1facb6c819de003c1b39ea07e759ef0fc34168fab4b4b4760

SHA512
09e9fc0aac7f3d666f5b9d2ead06f886cade61e85f777ca6f3da49f5743f762a34d9175de01136a561a025ca4acd29edfa72c574d320df8d3dd6b3488be19bfe

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_bz2.pyd

Filesize
48KB

MD5
310344b6511057ace1aa47ff2a261320

SHA1
70182479b8548d4a2c94659d40343e811a43f788

SHA256
fab5bbcd382280493d3d8af48f8d5c4abab46f10f1df07938daa4539b78093f7

SHA512
0c5032f6cc7eba8eb0a624d6535c4da8fd47c06efd3989a5962d981c8a8211e59f8ef4902ba9a03385dd3f69450e3e5cb4a1bf493937cabdd9dbb7ae9fe170b7

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_ctypes.pyd

Filesize
62KB

MD5
5015c9692bf98286d7303f33df586396

SHA1
9e1808d45c9fffdc031226fa9829e907eb255c9f

SHA256
2e36b9df7c744a1be53cabc0ed4f262c9ad28079c63ccf0b5a3893222d4b46a2

SHA512
7116b7bfc10295aa0d97b54f84432fd33dd500c9ced465b79cececf0d404c29107c1d6c87c6ea22c608df0c96751a8977ba19e6dccf69028556acd3255765de0

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_decimal.pyd

Filesize
117KB

MD5
0da4bb3f7cb7b2a8e55791b42f8b0a59

SHA1
48918b7faa3a8ec432e878b44b0a792410e38cd6

SHA256
0200ba086548d39ef23dd14405bd4187eaca41077e693b8c2f7a403008e00b25

SHA512
b6a05798e3319e3e117e6298bcb96510761171d040bed85701552f669969d4f33cf0db8a9eb990aec2b4d1e32161723923b40af7298402584827fb12697f81b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_elementtree.pyd

Filesize
60KB

MD5
2d9392a05b1ad13530faa597231182bb

SHA1
4ebd80e6637156a7df1b1dcc9d45d184e84b9624

SHA256
226d98f627b65ea5a926571ca1eb42eeaa412abe3e93a7dc99ec68fd0c4dd506

SHA512
bcd2fb1fc6977e939270fbeb939be46d93cc59c120cd9a188eaca3f7f64dfccbeaab090b5fe9578f8e394904652f4737bd23adc5dab1acacd8cc8598bcd0e133

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_hashlib.pyd

Filesize
35KB

MD5
f353a54fe006a35fb092ae68b7fa3bd2

SHA1
8a7746051a56159205a77d03c1b1490b6172f4db

SHA256
67e7858a3bf395de8a37b5444a980965f206fc92b9e813b63f8b562be6ff0b26

SHA512
3d26ef6611211333802d8290b0164a540c6a62ef332239bafe5586b661197c82857a1fc17fa97116533af730a9fe96e2e9f7dc37fc3d5f11351b522bad667b0c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_lzma.pyd

Filesize
86KB

MD5
129743145c5bcf1924c08df63c9dc04c

SHA1
8ec43426ff2d00cc2eb7a08913e957bdcb126c31

SHA256
0f48205ece5ecd65ce297a2a8af647066388764eda84c8117ec380f8637ab702

SHA512
551d5904ccbca32094a4e469b8ac2bb339f21e1346b88fba2c5f0d9462c75ed4aab40b9a9204b81f9d722eb1235aa8aa7a8408c46e1a901148b0691218689be2

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_multiprocessing.pyd

Filesize
27KB

MD5
7b31b10b42186dd4f9f47c3564751a90

SHA1
a6022fa60cdf6106935c4125fa3f0951ab169cd3

SHA256
ce9d2645620e50443cfdfb43acaf677ba6fcf449b41567302575c2c1a88625f9

SHA512
60b2ee50f459664f15389fe453d0efe93b4899ad9410b7711a605db36fc931d86277b93e5f352f5203a1c5fc25e434810e0331b123632b6e0065dd15806309be

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_overlapped.pyd

Filesize
33KB

MD5
c39258d952e25dc98cfd186d7f5eb2fa

SHA1
6d974755318a7b29cd96f300bb4ad584f7c87f1b

SHA256
46dbdb80001aa7007da773d3700a9c22db2fb6aaf3bf9823368d0bae2fb281c3

SHA512
ff0b411d7b7ad1c81b8cae54128bd9a0bdd3d8acf862ad28bd3b5274f2b7e70f0e777e5524d06ab86fb1e87481451ec425f34c33e25e3169bcba52ab5e6110f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_queue.pyd

Filesize
26KB

MD5
0f6334751c1a8c58cbd3ecd073209da7

SHA1
ff18d5c197ccc1535e6418f7250cfd2230998d1e

SHA256
a2de5b574465ba4456436ea1fd1a5850e91c96c66333db1f4f126dadd624c3fc

SHA512
4c898a49f74403dd840108733fd03165fd459589fb3c23853ba9b6ce6d8e280b80c5a5c32563df7df8ddeec66c7c663572b080d1a00e7fceb31d3f20f21b327b

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_socket.pyd

Filesize
44KB

MD5
de97e67002cbb61ffcf7fe311553a956

SHA1
62924f91f316db56856dca9bfec4e3c37728e374

SHA256
19ae80a512f3bac6b9db3b3fba0f57e94a148d77de8fa15a208db3bda293f9d0

SHA512
7823553c69cf53d0e394b6c481e3f689a934656e28163ee17f9a7765a15b8f6c71bba82e2d79a33c5851805149603673f8f095d0192b1b3ba7ca26dc0383cd3d

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_sqlite3.pyd

Filesize
58KB

MD5
eb09b533888fff0006bb6f9ede852ea9

SHA1
05a3117b35e1aa6896fc124fc4256982f60cd8b8

SHA256
f915d90190cf991c0c1638961fda7acc520dfa5d699b0b0742666e6f9d52110c

SHA512
940775e51b218b8924d38b04864a69da4f5dd38c460865f64e15a8cc165493166986a64a7d7bd62c55c61a8947a3db4fbd4ce8c44c7d28f879d5cada9d41c2cd

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_ssl.pyd

Filesize
66KB

MD5
a00400b26e9cb0361842127ed92d07e7

SHA1
389531753b83d78c57e17b9e05ff6238ecedf313

SHA256
f13c678bc68614f3a03c2b1ff52596b2d57e0691a6d65b165c58968edc87a876

SHA512
b5d4e60daafebb742a55ec736383eb86e335a5508fc853211a612c73c3143b3b4bc3047ccd40df5d9449ea789cd124b52c9b58b1943c0627ac3664d0bbf18650

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\_wmi.pyd

Filesize
28KB

MD5
c2d3d0c01b9c5a5ee82f65c205a89b8b

SHA1
ef5a48363b8be3c3841488b4bd24f0b9aabdb3dd

SHA256
85eef72c1d89481785e7b92d9c865b02bf1fa61d00d1004b2a55ca51cffc18a4

SHA512
31528161e9823da588eea14031bfb3558bd9512c5f72fd0a820b44a666a77d588ff50e1710d2d1a0e6eded52f94a6a42e4dafdf241c9cecc34fe1d825660e0ce

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\base_library.zip

Filesize
1.3MB

MD5
a9cbd0455b46c7d14194d1f18ca8719e

SHA1
e1b0c30bccd9583949c247854f617ac8a14cbac7

SHA256
df6c19637d239bfedc8cd13d20e0938c65e8fdf340622ff334db533f2d30fa19

SHA512
b92468e71490a8800e51410df7068dd8099e78c79a95666ecf274a9e9206359f049490b8f60b96081fafd872ec717e67020364bcfa972f26f0d77a959637e528

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\libcrypto-3.dll

Filesize
1.6MB

MD5
ecf92d1e849c1a4b89ed9dac0c2d732d

SHA1
bd2dbf194e9c891f27ef5b4521318d3804f76425

SHA256
afc166f8f1906cd75b4de9f7c72e92e36e4282437a02fedadb5ec3145c33c3a1

SHA512
44e3d6b37a11b715efb77c28c1c4fca4c25ba7f663183bcef4ba52e9c5271715f43f7b22b6307c6d8788c1ea4e8b709060b0a711aeae249164ba7bfd1d571f89

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\libffi-8.dll

Filesize
29KB

MD5
013a0b2653aa0eb6075419217a1ed6bd

SHA1
1b58ff8e160b29a43397499801cf8ab0344371e7

SHA256
e9d8eb01bb9b02ce3859ba4527938a71b4668f98897d46f29e94b27014036523

SHA512
0bd13fa1d55133ee2a96387e0756f48133987bacd99d1f58bab3be7bffdf868092060c17ab792dcfbb4680f984f40d3f7cc24abdd657b756496aa8884b8f6099

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\libopus-0.x64.dll

Filesize
217KB

MD5
e56f1b8c782d39fd19b5c9ade735b51b

SHA1
3d1dc7e70a655ba9058958a17efabe76953a00b4

SHA256
fa8715dd0df84fdedbe4aa17763b2ab0db8941fa33421b6d42e25e59c4ae8732

SHA512
b7702e48b20a8991a5c537f5ba22834de8bb4ba55862b75024eace299263963b953606ee29e64d68b438bb0904273c4c20e71f22ccef3f93552c36fb2d1b2c46

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\libssl-3.dll

Filesize
221KB

MD5
5b63295552454d570281d321e4ca7266

SHA1
d849e5c470d63953ec55f2d732fd6f611cb2c655

SHA256
cff180ce2bcf7daa19d6f3702e416f54a55eebfaff382f4b6d8ee00c0954b861

SHA512
a2286ca195b5a8287e8fbee6d20678e3bbefc7eb20f89e510bc94801239d08c8ea620603254fbfc6c6c0d5306dc38dc1f78a675d62e9bbb8a625ec4f7b894930

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\pyexpat.pyd

Filesize
88KB

MD5
c18efd962ed040c5265e6af4d6c9769d

SHA1
cce69d5d9aa257caeac48e1b371889b7526c5d92

SHA256
c613a3560342279a5deb38bbee4f7101431e8bc3d9e00e666c672f61b3655a76

SHA512
2f99425c51b0a0817af83a13db9b654f759e577ff03826097feca72cc112934291e40356f3ebf48e6870dff913bebf9f9130e7ebcef6676cb195e7684e29755d

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\python313.dll

Filesize
1.8MB

MD5
d8064129e98609f661abbed76e1a3a90

SHA1
10c8e18616bd3012045e9a0f349add4e4e8e8db4

SHA256
dea683826da43766b4902881d5e5924c181d69d35238df654e230070695d5ca4

SHA512
06e51dac672a4897026c65920eb4e3f119b4b2935ee525b07f1f1de0e2975e9d101ea913d75e479f29f09bb1b510f89b46d879abbc14035e877a3f5b4b69abd3

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\select.pyd

Filesize
25KB

MD5
f1fcaeda858277acdc1aab2de6875603

SHA1
10b9890dc18852628c68a379ffb0e528583b3db8

SHA256
7f3f336710cd6f961f923c9371ae0b1a63596d95eb99e436e5c646dc2337e4ce

SHA512
68edcc6a27ba6d9935a649a6ef150b56a8f6ce0ef35da784d62ce93f5a2a70f566619702e0150d3fe8585b3e0a0d6144802ca1fbd740a5ce8304d62cffcfffce

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\sqlite3.dll

Filesize
643KB

MD5
805c0e4d0f52966e05d4733eb77289bd

SHA1
61d73eae5f4e089b47abf0514e5259040c717f3f

SHA256
a8f852e99959f3e229b51159762d02cff1ee91a1e21dcd443e66fe6ec22e1a29

SHA512
1f422b417f7f96375aff736ecd84ec0534dc7eae661e3537fc9b371060044186a081299a0e5bde74be4883b77d48e0b133d53dbdc5e7395723b144af5d714a1f

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI49842\unicodedata.pyd

Filesize
260KB

MD5
783bb94a8edffaef2f97c298d7f3703c

SHA1
189dc3a17c6597ffda6afb458b4ffa46a71282b0

SHA256
b87714ad22a980b89dcca9f8d79610a6e8cc183f643939c04c6d7257b1ffa353

SHA512
88487302a892cbb2cfba912dafe6fdc456252770d6c83a340660648699f3763fa7d7cebb0cc3a238b80a0d41ebfc9889417c0e7f07cc94582d14151925cb825e

Download Submit
memory/4916-49-0x00007FFC4B620000-0x00007FFC4BC83000-memory.dmp

Filesize
6.4MB

Download
memory/4916-86-0x00007FFC4B620000-0x00007FFC4BC83000-memory.dmp

Filesize
6.4MB

Download
memory/4916-56-0x00007FFC64350000-0x00007FFC6435F000-memory.dmp

Filesize
60KB

Download
memory/4916-81-0x00007FFC5B470000-0x00007FFC5B49B000-memory.dmp

Filesize
172KB

Download
memory/4916-85-0x00007FFC4AF20000-0x00007FFC4B453000-memory.dmp

Filesize
5.2MB

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memory/4916-83-0x00007FFC5B000000-0x00007FFC5B014000-memory.dmp

Filesize
80KB

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memory/4916-60-0x00007FFC60AF0000-0x00007FFC60B09000-memory.dmp

Filesize
100KB

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memory/4916-55-0x00007FFC5F950000-0x00007FFC5F977000-memory.dmp

Filesize
156KB

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memory/4916-87-0x00007FFC5F950000-0x00007FFC5F977000-memory.dmp

Filesize
156KB

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memory/4916-94-0x00007FFC4AF20000-0x00007FFC4B453000-memory.dmp

Filesize
5.2MB

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memory/4916-93-0x00007FFC5B000000-0x00007FFC5B014000-memory.dmp

Filesize
80KB

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memory/4916-92-0x00007FFC5B470000-0x00007FFC5B49B000-memory.dmp

Filesize
172KB

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memory/4916-91-0x00007FFC60AF0000-0x00007FFC60B09000-memory.dmp

Filesize
100KB

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memory/4916-90-0x00007FFC64350000-0x00007FFC6435F000-memory.dmp

Filesize
60KB

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memory/4916-89-0x00007FFC5F950000-0x00007FFC5F977000-memory.dmp

Filesize
156KB

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memory/4916-88-0x00007FFC4B620000-0x00007FFC4BC83000-memory.dmp

Filesize
6.4MB

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