5e921611411a1f372b02c4655a25f021c666b897e6e4f0ff59ef8a8877792c1f

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 04:42

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General

Target

MSK203.exe
Size

495KB
MD5

672127d627b0d1ffdc8f4f6a7f6a4697
SHA1

965c08f135e270201ca61122955104c0de39ad9f
SHA256

c26d121b096af68fc785a4e7fbd821c0c63a64abd2a64c9abf237fe98d0ddf42
SHA512

f3e6c7837c767944d7e14cac75e5844fa217cfdc3d6dcae575a7d0ad2740617cce9e53e6b28f947114708361570972150737c9c1e3663b5b3ee9fd55a2d6a746
SSDEEP

12288:Pbm37Owct5ERd1ZRad1I5eA2bZxeyCNNrmj:Pbms5EP1CAsZxse

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 2 IoCs

Processes:

MSK203.exe

pid process

2992 MSK203.exe
2992 MSK203.exe
Drops file in Windows directory 1 IoCs

Processes:

MSK203.exe

description ioc process

File opened for modification C:\Windows\Fonts\Apoplektikerens\Chateaubriand.Exi MSK203.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2036 2992 WerFault.exe MSK203.exe

pid	process
2992	MSK203.exe
2992	MSK203.exe

description	ioc	process
File opened for modification	C:\Windows\Fonts\Apoplektikerens\Chateaubriand.Exi	MSK203.exe

pid	pid_target	process	target process
2036	2992	WerFault.exe	MSK203.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

MSK203.exe

description	pid	process	target process
PID 2992 wrote to memory of 2036	2992	MSK203.exe	WerFault.exe
PID 2992 wrote to memory of 2036	2992	MSK203.exe	WerFault.exe
PID 2992 wrote to memory of 2036	2992	MSK203.exe	WerFault.exe
PID 2992 wrote to memory of 2036	2992	MSK203.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\MSK203.exe
"C:\Users\Admin\AppData\Local\Temp\MSK203.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 528
2⤵
- Program crash
PID:2036

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsd171A.tmp
Filesize
7B

MD5
67cfa7364c4cf265b047d87ff2e673ae

SHA1
56e27889277981a9b63fcf5b218744a125bbc2fa

SHA256
639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713

SHA512
17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsd171A.tmp
Filesize
21B

MD5
8971b7a691c3fa70cb038019ee564845

SHA1
bdffd99c78750e7832d7d1e0cdee6c08c089ecb5

SHA256
612365d1000c11e69ee5ecd1faa7dc59078993959c48b7916a580b7bd3cbf587

SHA512
ee51ddd485220a130dbd4ae28f47f7bb990ca989deaabd5467b2f446cba05b2e600e1c04414e844c94bdc0b68bdfc2618e8aa410401cbb640c59831b8f9647d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsd171A.tmp
Filesize
74B

MD5
16d513397f3c1f8334e8f3e4fc49828f

SHA1
4ee15afca81ca6a13af4e38240099b730d6931f0

SHA256
d3c781a1855c8a70f5aca88d9e2c92afffa80541334731f62caa9494aa8a0c36

SHA512
4a350b790fdd2fe957e9ab48d5969b217ab19fc7f93f3774f1121a5f140ff9a9eaaa8fa30e06a9ef40ad776e698c2e65a05323c3adf84271da1716e75f5183c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsd17BB.tmp
Filesize
30B

MD5
f15bfdebb2df02d02c8491bde1b4e9bd

SHA1
93bd46f57c3316c27cad2605ddf81d6c0bde9301

SHA256
c87f2ff45bb530577fb8856df1760edaf1060ae4ee2934b17fdd21b7d116f043

SHA512
1757ed4ae4d47d0c839511c18be5d75796224d4a3049e2d8853650ace2c5057c42040de6450bf90dd4969862e9ebb420cd8a34f8dd9c970779ed2e5459e8f2f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso175C.tmp
Filesize
2B

MD5
25bc6654798eb508fa0b6343212a74fe

SHA1
15d5e1d3b948fd5986aaff7d9419b5e52c75fc93

SHA256
8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc

SHA512
5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso175C.tmp
Filesize
4B

MD5
cde63b34c142af0a38cbe83791c964f8

SHA1
ece2b194b486118b40ad12c1f0e9425dd0672424

SHA256
65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d

SHA512
0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso175C.tmp
Filesize
6B

MD5
50484c19f1afdaf3841a0d821ed393d2

SHA1
c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b

SHA256
6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c

SHA512
d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso175C.tmp
Filesize
8B

MD5
c3cb69218b85c3260387fb582cb518dd

SHA1
961c892ded09a4cbb5392097bb845ccba65902ad

SHA256
1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101

SHA512
2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso175C.tmp
Filesize
9B

MD5
2b3884fe02299c565e1c37ee7ef99293

SHA1
d8e2ef2a52083f6df210109fea53860ea227af9c

SHA256
ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858

SHA512
aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso175C.tmp
Filesize
10B

MD5
9a53fc1d7126c5e7c81bb5c15b15537b

SHA1
e2d13e0fa37de4c98f30c728210d6afafbb2b000

SHA256
a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92

SHA512
b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso175C.tmp
Filesize
16B

MD5
6cc8ad9db8f0ba7f81660ccd69b64a98

SHA1
91dc056ad77f912e803c37ffea075118f19e7634

SHA256
cc88cad1427b013d4e18f53bbcf978b7d06baae78929230ef5c7ff06d2b8f03d

SHA512
94272e4a4b39622a108f0d11fffc37825719aa911720c9a39482198e8360cbd11fdcd5535fa765f3c8677375da930f5dfd8408c3135bddd7a5a954397c85866a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso175C.tmp
Filesize
60B

MD5
6905490802a6c440fab7bc3299682016

SHA1
7212e3db4f3387c8ff2daee9a94067db11a218be

SHA256
0fc3d8084bd0470747f5e0ecb10127bbf64b1b7618ab5a819db38e4b839d3451

SHA512
fcf7b1927605f76bd61d0f5c467b040f210d37ae99477f1a1984cc84037c2b7b461c668e1ba993dcb4e9393c2c7a16ac2b42ba2e97d4e18121ba18d800a04a1d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst177C.tmp
Filesize
56B

MD5
2c77bbd52333e4144ba070082eac42d6

SHA1
d5570ca72f198bd75e1f0d241f0dd69986877ea4

SHA256
54695e5022b16a8b57b4995eabb2d2b2212e0f3fc6ddad15cb2bbc5798fa3c04

SHA512
c800b128aee9e19cfa614be129deed3a440263ff5b58d801e4929ceebf5a930eba8efe948c70e163294a4dabe993a6dcc24f3ca3cef859877da852919dce4162

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsy174B.tmp
Filesize
11B

MD5
9b198a2aaf063ff060bb24b6fa5bb5df

SHA1
90b3670750dba26a0a1015b9403232ab9d4dd07e

SHA256
714144b6001dc56c1d3286dfd64909ca592a11aec7fdab9d290397d5393ab8f6

SHA512
840d6d9f4db234e94aefb8b82a0ae406a22aba078ace2199d61a21d7e06190c44a38e2d5857f117de8b2019d90d382d1ce4f17204925951374f34d47fd99b1f7

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsy174B.tmp
Filesize
41B

MD5
088d509592627d226179707a88a1f4ee

SHA1
8c03f8a469d4dc4e7f65da8daa8c0e9cdebbe9f4

SHA256
7938b90dbe50e63bd3bc2b7ae77d43ba7c01c15354ab01f9a0b63ebac56b796d

SHA512
f36c70cbb4dbb09a8081b472ceb712b983a676d5a34dc19ec4d0d95126c4e6b80cdd66640e304eb35445503255c9aac22edf386bf6782151844e8df4e1874d5f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsy174B.tmp
Filesize
52B

MD5
5d04a35d3950677049c7a0cf17e37125

SHA1
cafdd49a953864f83d387774b39b2657a253470f

SHA256
a9493973dd293917f3ebb932ab255f8cac40121707548de100d5969956bb1266

SHA512
c7b1afd95299c0712bdbc67f9d2714926d6ec9f71909af615affc400d8d2216ab76f6ac35057088836435de36e919507e1b25be87b07c911083f964eb67e003b

Download Submit
\Users\Admin\AppData\Local\Temp\nsi173A.tmp\System.dll
Filesize
12KB

MD5
cff85c549d536f651d4fb8387f1976f2

SHA1
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

SHA256
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

SHA512
531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

Download Submit