Analysis Overview
SHA256
91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c
Threat Level: Known bad
The file 91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c was found to be: Known bad.
Malicious Activity Summary
Detect Neshta Payload
ElysiumStealer Support DLL
ElysiumStealer
Modifies system executable filetype association
Elysiumstealer family
ElysiumStealer Payload
Neshta
Neshta family
Executes dropped EXE
Reads user/profile data of web browsers
Loads dropped DLL
Checks computer location settings
Drops file in Program Files directory
Drops file in Windows directory
Program crash
Enumerates physical storage devices
Modifies registry class
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-05-24 03:06
Signatures
Detect Neshta Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
ElysiumStealer Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Elysiumstealer family
Neshta family
Analysis: behavioral1
Detonation Overview
Submitted
2022-05-24 03:06
Reported
2022-05-24 03:09
Platform
win7-20220414-en
Max time kernel
41s
Max time network
46s
Command Line
Signatures
ElysiumStealer
ElysiumStealer Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
ElysiumStealer Support DLL
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Modifies system executable filetype association
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Drops file in Program Files directory
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\svchost.com | C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
"C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 640
Network
Files
memory/1404-54-0x0000000075A61000-0x0000000075A63000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
| MD5 | def2f420993c7111ac3eba4f5f7d3b15 |
| SHA1 | ec3ec0580062e5c2cc4e6f948fee2d45f0a14faf |
| SHA256 | 2cc971e53dcc25efc6975ae8f9a19fabb1d217374655a6ba735edd7695ecbc27 |
| SHA512 | b5427760deb83867a97e0f6c51466764b899e47e87e01d58d795e062bd418905d91d0bb28d8e4550ba701d6e7159515712029946285c456282750b00eb5973b6 |
memory/2044-56-0x0000000000000000-mapping.dmp
\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
| MD5 | a9bfd02a78e9b21cdfacd3b97f81e7e1 |
| SHA1 | 76c49ef318185e6855d6ad4eb6caec0aa1487986 |
| SHA256 | 03d14e6d190aaa6cf8a3ba3e2957ec20a2bead10f387d39505b14a28851f55bb |
| SHA512 | 0a13f9662512bdcd3e151f3d223b9238645d2a8c7adff7f09341cb6c6e28e461671bc00115560087862a5438250e28ef707306f51a32c0261c9622088ebc3e34 |
C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
| MD5 | fb8a0dc2ebc73e3300aad30b0ab5379c |
| SHA1 | a3f59d8a54a5633a0079baf078a7dd2f3fa7222e |
| SHA256 | 0853d148c93b086ceab60a39fcbd8f27404a6a94511c66fd3ccaa3f93857faa1 |
| SHA512 | 1a18b03634f524c5f50499bbf455afd160623e11e2b674a09eba797202ee522a191390a9b872198b9bca1ffdcd7fb8f8ad0302678dee25df0c8013f13a2314d8 |
memory/2044-59-0x00000000011E0000-0x00000000013E4000-memory.dmp
memory/2044-60-0x0000000000470000-0x000000000047C000-memory.dmp
\Users\Admin\AppData\Local\Temp\Runtime.MSIL.1.0.0.0\NativePRo.dll
| MD5 | 94173de2e35aa8d621fc1c4f54b2a082 |
| SHA1 | fbb2266ee47f88462560f0370edb329554cd5869 |
| SHA256 | 7e2c70b7732fb1a9a61d7ce3d7290bc7b31ea28cbfb1dbc79d377835615b941f |
| SHA512 | cadbf4db0417283a02febbabd337bf17b254a6eb6e771f8a553a140dd2b04efd0672b1f3175c044a3edd0a911ce59d6695f765555262560925f3159bb8f3b798 |
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
memory/964-64-0x0000000000000000-mapping.dmp
\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
| MD5 | 509abc7fde5a015aef1d1490cb6c4012 |
| SHA1 | 47b2fb7ee375de58243f8da7197bfa0667108fd7 |
| SHA256 | 513e0ae987d5ee5c1e8c6c04d6f26d58c8220a6ea39d57a3ca2d10190296b1eb |
| SHA512 | 3fb4685d595a2470e72ee8d936b49f1ec4c50c01f0ff108201458e59a7f264448f06c1ad66eadfd6ce8b24cc86d98cc98b8578b49321789fc45b5b246e026859 |
\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
| MD5 | 897cb9d3a3e2e430584af60d74fbeb27 |
| SHA1 | a3a90c9df8e7f15d0322ea8070cbf7b0b21ac1f2 |
| SHA256 | 013ebaf163e5ff385f86108dbed7a20bec71603e461ab72ff40b639892fb6a7b |
| SHA512 | 2e6c4595cddefd1e603fd483d38b1468a755c654b2848a90694670313d163ca54e46ac6035615131c91da422daea86f2d1c9509b8d97a24da5ddd39d9bfb93d7 |
\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
| MD5 | 5dcd1bfe185822e78f4dd54d47676eae |
| SHA1 | ba10220f59c824742437c9b2ccdec451387c619a |
| SHA256 | cadf8f3e87399f24f465bd681d33e72e4d40a04567f996737b3943b0759fbe40 |
| SHA512 | 9b1863312339144f297fb54fb3e6b3d5da5225586c3d50ef776045dc6c1f6bed18c910eeab5c4a9121dc3f16b41f331955ac5d67e5cc9b8e3665258c162e1f4b |
\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
| MD5 | a207d0ea9d75cc8c66d3362f7cc95f39 |
| SHA1 | c49d55cb5ea2ad27cb55c80f6f1b74013d53cbe5 |
| SHA256 | 09e2b05815c729c55ab84e4c6a168effb7b92566ddd76f77ff7d81325b17b6cd |
| SHA512 | 67050348299d1d04e4598b1bc3edb5b35450f87fe951ef0e244b9a8200dffb65cd8dcd0f0ff11bacd0f84255868872c6f6131c92bf6e96ecb0839369b3805451 |
\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
| MD5 | 896738a684b4792e1197acabc960b119 |
| SHA1 | 6bf0accdec9bf7591738c72bd52cf1dd02ca6f6e |
| SHA256 | 3dcc23bd71152814c122b3e4e1bc9684d8a3d26ebf3137ca7bceef8ad2cf8121 |
| SHA512 | c8ce8de9572061fb78344549f59b57985eb41bfa817d8da1e6f0d81c30dbc6135f0f7f0901672991b0b47b33dc4bb12a1414e9f22d5be60aeae03e25bf31a8e5 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-05-24 03:06
Reported
2022-05-24 03:09
Platform
win10v2004-20220414-en
Max time kernel
154s
Max time network
183s
Command Line
Signatures
ElysiumStealer
ElysiumStealer Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
ElysiumStealer Support DLL
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Modifies system executable filetype association
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Reads user/profile data of web browsers
Drops file in Program Files directory
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\svchost.com | C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
"C:\Users\Admin\AppData\Local\Temp\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4876 -ip 4876
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 1092
Network
| Country | Destination | Domain | Proto |
| US | 20.42.65.85:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 13.107.42.16:443 | tcp |
Files
memory/4876-130-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
| MD5 | 328363afedfb05a045788fc37273ab0b |
| SHA1 | 38a3e9d74af2b746382c8fab5666cac1b0300297 |
| SHA256 | ee7666c6cd823b082bfd9ecc8fe2c090e23e4882da3759c3d07bd5d8ade47790 |
| SHA512 | 5db66eb7275c6f127117dc25612dc3fbd3ffc129057498ae2fe125526b95cf17e3a4fe56f58d72c10ec21c54e13a9aac182c3c35727219fa0f86f4e030d8f448 |
C:\Users\Admin\AppData\Local\Temp\3582-490\91da0c134350b0c47432593bf1d6d09bab05aa076c94c16cea90404fadbfed7c.exe
| MD5 | 328363afedfb05a045788fc37273ab0b |
| SHA1 | 38a3e9d74af2b746382c8fab5666cac1b0300297 |
| SHA256 | ee7666c6cd823b082bfd9ecc8fe2c090e23e4882da3759c3d07bd5d8ade47790 |
| SHA512 | 5db66eb7275c6f127117dc25612dc3fbd3ffc129057498ae2fe125526b95cf17e3a4fe56f58d72c10ec21c54e13a9aac182c3c35727219fa0f86f4e030d8f448 |
memory/4876-133-0x0000000000140000-0x0000000000344000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Runtime.MSIL.1.0.0.0\NativePRo.dll
| MD5 | 94173de2e35aa8d621fc1c4f54b2a082 |
| SHA1 | fbb2266ee47f88462560f0370edb329554cd5869 |
| SHA256 | 7e2c70b7732fb1a9a61d7ce3d7290bc7b31ea28cbfb1dbc79d377835615b941f |
| SHA512 | cadbf4db0417283a02febbabd337bf17b254a6eb6e771f8a553a140dd2b04efd0672b1f3175c044a3edd0a911ce59d6695f765555262560925f3159bb8f3b798 |
memory/4876-135-0x0000000004DA0000-0x0000000004E3C000-memory.dmp
memory/4876-136-0x0000000005480000-0x0000000005A24000-memory.dmp
memory/4876-137-0x0000000004F70000-0x0000000005002000-memory.dmp
memory/4876-138-0x0000000004E40000-0x0000000004E4A000-memory.dmp
memory/4876-139-0x0000000004ED0000-0x0000000004F26000-memory.dmp