8eef68e38ffd16167815c1e257779bd65af3accec82cd840905241c197ddcc2c

Analysis

max time kernel
151s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
07/01/2024, 19:38

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General

Target
a72d5fc2211db435af9ab375f832b3cd.exe
Size 679KB
Sample240107-ycd81sdfc4
SHA256 8eef68e38ffd16167815c1e257779bd65af3accec82cd840905241c197ddcc2c
MD5 a72d5fc2211db435af9ab375f832b3cd
SHA1 7314bc8001f4aa904384a198e1df75660b3a5f63
SHA512 750ec66c04916748bdd99455d8507287b4da50949bc5677faadc2f72408a293a0f400a2bf97244693b7955e5afd7d915a5762733fe1432969943c41f3b393cb3
SSDEEP 12288:o1P8JUFCBlF32PyN724Ck6TpxGbj8lleYIagaO:o1kJUFCBl52Pe724XSlzIagaO
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

spyware stealer upx

Malware Config

Signatures

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/files/0x000c00000001e364-5.dat	WebBrowserPassView

Nirsoft 6 IoCs

resource	yara_rule
behavioral2/files/0x000c00000001e364-5.dat	Nirsoft
behavioral2/memory/1584-14-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral2/memory/1584-15-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral2/memory/2332-26-0x0000000000400000-0x0000000000418000-memory.dmp	Nirsoft
behavioral2/memory/4304-46-0x0000000001830000-0x0000000001840000-memory.dmp	Nirsoft
behavioral2/memory/4304-47-0x0000000001830000-0x0000000001840000-memory.dmp	Nirsoft

Executes dropped EXE 4 IoCs

pid	Process
3392	WebBrowserPassView.exe
1584	mspass.exe
2332	ProduKey.exe
2240	MC.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1584-14-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/1584-15-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/2332-23-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/2332-26-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/files/0x0006000000023233-21.dat	upx
behavioral2/files/0x000a00000002311d-13.dat	upx
behavioral2/memory/4304-43-0x0000000001830000-0x0000000001840000-memory.dmp	upx

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1584	mspass.exe
1584	mspass.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1584	mspass.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4304	a72d5fc2211db435af9ab375f832b3cd.exe
4304	a72d5fc2211db435af9ab375f832b3cd.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 3392	4304	a72d5fc2211db435af9ab375f832b3cd.exe	91
PID 4304 wrote to memory of 3392	4304	a72d5fc2211db435af9ab375f832b3cd.exe	91
PID 4304 wrote to memory of 3392	4304	a72d5fc2211db435af9ab375f832b3cd.exe	91
PID 4304 wrote to memory of 1584	4304	a72d5fc2211db435af9ab375f832b3cd.exe	92
PID 4304 wrote to memory of 1584	4304	a72d5fc2211db435af9ab375f832b3cd.exe	92
PID 4304 wrote to memory of 1584	4304	a72d5fc2211db435af9ab375f832b3cd.exe	92
PID 4304 wrote to memory of 2332	4304	a72d5fc2211db435af9ab375f832b3cd.exe	93
PID 4304 wrote to memory of 2332	4304	a72d5fc2211db435af9ab375f832b3cd.exe	93
PID 4304 wrote to memory of 2332	4304	a72d5fc2211db435af9ab375f832b3cd.exe	93
PID 4304 wrote to memory of 2240	4304	a72d5fc2211db435af9ab375f832b3cd.exe	98
PID 4304 wrote to memory of 2240	4304	a72d5fc2211db435af9ab375f832b3cd.exe	98

C:\Users\Admin\AppData\Local\Temp\a72d5fc2211db435af9ab375f832b3cd.exe
"C:\Users\Admin\AppData\Local\Temp\a72d5fc2211db435af9ab375f832b3cd.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Users\Admin\AppData\Local\Temp\WebBrowserPassView.exe
  C:\Users\Admin\AppData\Local\Temp\WebBrowserPassView.exe /stext C:\Users\Admin\AppData\Local\Temp\Opera.txt
  2⤵
  - Executes dropped EXE
  PID:3392
- C:\Users\Admin\AppData\Local\Temp\mspass.exe
  C:\Users\Admin\AppData\Local\Temp\mspass.exe /stext C:\Users\Admin\AppData\Local\Temp\MS.txt
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1584
- C:\Users\Admin\AppData\Local\Temp\ProduKey.exe
  C:\Users\Admin\AppData\Local\Temp\ProduKey.exe /stext C:\Users\Admin\AppData\Local\Temp\ProduKey.txt
  2⤵
  - Executes dropped EXE
  PID:2332
- C:\Users\Admin\AppData\Local\Temp\MC.exe
  C:\Users\Admin\AppData\Local\Temp\MC.exe
  2⤵
  - Executes dropped EXE
  PID:2240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

FZ.txt

Path C:\Users\Admin\AppData\Local\Temp\FZ.txt
Size 2B
SHA256 7eb70257593da06f682a3ddda54a9d260d4fc514f645237f5ca74b08f8da61a6
MD5 81051bcc2cf1bedf378224b0a93e2877
SHA1 ba8ab5a0280b953aa97435ff8946cbcbb2755a27
SHA512 1b302a2f1e624a5fb5ad94ddc4e5f8bfd74d26fa37512d0e5face303d8c40eee0d0ffa3649f5da43f439914d128166cb6c4774a7caa3b174d7535451eb697b5d
MD5 SHA1 SHA512

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MC.exe

Path C:\Users\Admin\AppData\Local\Temp\MC.exe
Size 32KB
SHA256 714eb102758c1c0feaf34a7e888026e7c073b893e931ac12ec6f607627b55af9
MD5 eba43e8a28297df4146bef07654f4580
SHA1 a5e96a0e8cd441f48dfcc3b97d45b0b466a864fa
SHA512 2748f1f943767b5f2df5c9bc85f325a85f2d1c55090aa6e2d8e04901777200ba34ea75c4c6c49b473f964280b58f00e591f67a3b56f4e89f958e9f65966825bb
SSDEEP 768:U60vWEp1VNP2GCKuy+oo767qNIi49jEtSpqhl4IOsRc:U1xNPXHSY9jiEqhuUc
MD5 SHA1 SHA512 SSDEEP

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Opera.txt

Path C:\Users\Admin\AppData\Local\Temp\Opera.txt
Size 2B
SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
MD5 f3b25701fe362ec84616a93a45ce9998
SHA1 d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA512 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
MD5 SHA1 SHA512

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ProduKey.exe

Path C:\Users\Admin\AppData\Local\Temp\ProduKey.exe
Size 37KB
SHA256 bbcb52b0538c81d9ced034e2c0435188bcd1d36f09bce76654f494e4d5dcdb0c
MD5 12507d0c4b2963ba229e02ff961ec400
SHA1 6a9b296e5b614457f106cfc8ed6fc24bd75ba9aa
SHA512 1ad84dc8f90fd2342f4136d7594a0e10ea6ceefa0fd1b64a96a9200af260f76e3be22e1e3d6577c8b6b9a4ac655d0a8e2e2615f52114e1b11fd0773ec4e2bf10
SSDEEP 768:XfiIU0Se3EW0u5FyJZ6vimApd1+zX8PwEHwQY/+hDkuvvyTfKu:XfijLe3/KZEimS+7JmwCt/vCfKu
MD5 SHA1 SHA512 SSDEEP

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ProduKey.txt

Path C:\Users\Admin\AppData\Local\Temp\ProduKey.txt
Size 729B
SHA256 365b0c56b65f24da09586d7cda5f7389666d8ce6585c2deb19c26868f0979d38
MD5 29662ec08f5aa491b2733fa5f4dee30d
SHA1 bde21bcab3fc10cd6795a821e4f039fe4ff876e8
SHA512 a5216d00c9be46d2a3c8119c4dc17d458ecec36ef03e9de7001911ed423024c3b95e5ec665d5d4f6baadcf56d2afd792ae8a9fe133f31574f82973f391255329
MD5 SHA1 SHA512

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WebBrowserPassView.exe

Path C:\Users\Admin\AppData\Local\Temp\WebBrowserPassView.exe
Size 321KB
SHA256 989f90eb63cf2c215d81a9838911f990e1bf4a97660c21a988d74f605abfc6e9
MD5 3b6bcf49057ea94968017b3d14cdf72d
SHA1 41ca649fdc27e352d2f7f8b4e14f84d21d20ab4b
SHA512 cfe0daaba893458553655b4b30a51fcd25e2be8023c3328f4420dff44909cd66131d41cce39843a1883f56b49a423a821e79fc235b169ff1d2087f72f9a20206
SSDEEP 6144:HML/ve8CBCajBJ13T/a12SyN7cuL8z4WAt4kih2:HUFCBlF32PyN724Ckh
MD5 SHA1 SHA512 SSDEEP

Submit Download

mspass.exe

Path C:\Users\Admin\AppData\Local\Temp\mspass.exe
Size 65KB
SHA256 3f3c8484962b395f304a836ee5e8ee17beaafe982795c9747d8ee98cc6e4ca8f
MD5 ffc52f2b4435fcddaca6e15489a88b75
SHA1 63ec31a04cf176852344d544ae855da0dac64980
SHA512 389694feccfe6ca352705b9481913fece6d1d47083f235ccdd60c05cfda82606be53845fde0dba8ec3f3748f820a828c9be0ce078c8b9cc853285b23f172841c
SSDEEP 1536:hBcOUiUlO1/DXn4cHJ4dPaCnpWqOaeziqf7mvvXWVcZ0:hBcu/hDXn/JgaMEjaOsXV6
MD5 SHA1 SHA512 SSDEEP

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memory/1584-14-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1584-15-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/2240-37-0x0000000140000000-0x0000000140017000-memory.dmp

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memory/2332-23-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/2332-26-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/4304-40-0x00000000754C0000-0x0000000075A71000-memory.dmp

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memory/4304-42-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-30-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-0-0x00000000754C0000-0x0000000075A71000-memory.dmp

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memory/4304-2-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-1-0x00000000754C0000-0x0000000075A71000-memory.dmp

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memory/4304-28-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-39-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-41-0x00000000754C0000-0x0000000075A71000-memory.dmp

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memory/4304-29-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-43-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-44-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-45-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-46-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-47-0x0000000001830000-0x0000000001840000-memory.dmp

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memory/4304-59-0x0000000001830000-0x0000000001840000-memory.dmp

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