oski | 9bb517a8a2e5028d0714bcba5d90c4b73c5ba2881b112f4ea2690d269dcf4017

General

Target

ORDEN DE COMPRA (2).exe
Size

556KB
MD5

b92a57975d4cee3e7a64ffd8c0b8eba1
SHA1

3dc6a5d31143af94ec21b891d1723527a04ba9bc
SHA256

9bb517a8a2e5028d0714bcba5d90c4b73c5ba2881b112f4ea2690d269dcf4017
SHA512

f413e3750aa404947df0fab43631ab802cd02e5805461202e54dafbd1829071f24d9200f2c407cb77b341e8e5528d7478c196115883d463ad79e7f00fa7a9313

Score

10^/10

oski discovery infostealer spyware stealer

Malware Config

Extracted

Family

oski

C2

vsiperu.com

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Downloads MZ/PE file
Loads dropped DLL 3 IoCs

Processes:

ORDEN DE COMPRA (2).exe

pid process

1208 ORDEN DE COMPRA (2).exe
1208 ORDEN DE COMPRA (2).exe
1208 ORDEN DE COMPRA (2).exe
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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Suspicious use of SetThreadContext 1 IoCs

Processes:

ORDEN DE COMPRA (2).exe

description pid process target process

PID 2688 set thread context of 1208 2688 ORDEN DE COMPRA (2).exe ORDEN DE COMPRA (2).exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

ORDEN DE COMPRA (2).exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString ORDEN DE COMPRA (2).exe
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2824 schtasks.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1708 taskkill.exe

pid	process
1208	ORDEN DE COMPRA (2).exe
1208	ORDEN DE COMPRA (2).exe
1208	ORDEN DE COMPRA (2).exe

description	pid	process	target process
PID 2688 set thread context of 1208	2688	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ORDEN DE COMPRA (2).exe

pid	process
2824	schtasks.exe

pid	process
1708	taskkill.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

ORDEN DE COMPRA (2).exepowershell.exepowershell.exe

pid	process
2688	ORDEN DE COMPRA (2).exe
2688	ORDEN DE COMPRA (2).exe
2688	ORDEN DE COMPRA (2).exe
2688	ORDEN DE COMPRA (2).exe
2688	ORDEN DE COMPRA (2).exe
2688	ORDEN DE COMPRA (2).exe
2688	ORDEN DE COMPRA (2).exe
2688	ORDEN DE COMPRA (2).exe
2948	powershell.exe
916	powershell.exe
916	powershell.exe
2948	powershell.exe
916	powershell.exe
2948	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

ORDEN DE COMPRA (2).exepowershell.exepowershell.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	2688	ORDEN DE COMPRA (2).exe
Token: SeDebugPrivilege	2948	powershell.exe
Token: SeDebugPrivilege	916	powershell.exe
Token: SeDebugPrivilege	1708	taskkill.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

ORDEN DE COMPRA (2).exeORDEN DE COMPRA (2).execmd.exe

description	pid	process	target process
PID 2688 wrote to memory of 2948	2688	ORDEN DE COMPRA (2).exe	powershell.exe
PID 2688 wrote to memory of 2948	2688	ORDEN DE COMPRA (2).exe	powershell.exe
PID 2688 wrote to memory of 2948	2688	ORDEN DE COMPRA (2).exe	powershell.exe
PID 2688 wrote to memory of 916	2688	ORDEN DE COMPRA (2).exe	powershell.exe
PID 2688 wrote to memory of 916	2688	ORDEN DE COMPRA (2).exe	powershell.exe
PID 2688 wrote to memory of 916	2688	ORDEN DE COMPRA (2).exe	powershell.exe
PID 2688 wrote to memory of 2824	2688	ORDEN DE COMPRA (2).exe	schtasks.exe
PID 2688 wrote to memory of 2824	2688	ORDEN DE COMPRA (2).exe	schtasks.exe
PID 2688 wrote to memory of 2824	2688	ORDEN DE COMPRA (2).exe	schtasks.exe
PID 2688 wrote to memory of 1208	2688	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 2688 wrote to memory of 1208	2688	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 2688 wrote to memory of 1208	2688	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 2688 wrote to memory of 1208	2688	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 2688 wrote to memory of 1208	2688	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 2688 wrote to memory of 1208	2688	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 2688 wrote to memory of 1208	2688	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 2688 wrote to memory of 1208	2688	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 2688 wrote to memory of 1208	2688	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 1208 wrote to memory of 1852	1208	ORDEN DE COMPRA (2).exe	cmd.exe
PID 1208 wrote to memory of 1852	1208	ORDEN DE COMPRA (2).exe	cmd.exe
PID 1208 wrote to memory of 1852	1208	ORDEN DE COMPRA (2).exe	cmd.exe
PID 1852 wrote to memory of 1708	1852	cmd.exe	taskkill.exe
PID 1852 wrote to memory of 1708	1852	cmd.exe	taskkill.exe
PID 1852 wrote to memory of 1708	1852	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\ORDEN DE COMPRA (2).exe
"C:\Users\Admin\AppData\Local\Temp\ORDEN DE COMPRA (2).exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2688

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ORDEN DE COMPRA (2).exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2948

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vJDOyzKfgYgvV.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:916

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vJDOyzKfgYgvV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB225.tmp"
2⤵
- Creates scheduled task(s)
PID:2824

C:\Users\Admin\AppData\Local\Temp\ORDEN DE COMPRA (2).exe
"C:\Users\Admin\AppData\Local\Temp\ORDEN DE COMPRA (2).exe"
2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1208

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /pid 1208 & erase C:\Users\Admin\AppData\Local\Temp\ORDEN DE COMPRA (2).exe & RD /S /Q C:\\ProgramData\\975163847878258\\* & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:1852

C:\Windows\SysWOW64\taskkill.exe
taskkill /pid 1208
4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1708

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
MD5
1c19c16e21c97ed42d5beabc93391fc5

SHA1
8ad83f8e0b3acf8dfbbf87931e41f0d664c4df68

SHA256
1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05

SHA512
7d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
MD5
66558c0e05edecf864a4e59eb72a8816

SHA1
5b1640078e740927a9db3cdd327395d8bb2fe4e5

SHA256
30d31c0879478db9f8f3cf07a6490ef0766f2481aefe7cff108a9cacfe853efb

SHA512
38547f94bd09925d9fb8445e2fd1a5f5edfa0cdc9eb0b8341c5491691ed9ffa64039e592368b0f9650c9de2d0453227e71fc20c34182acd29c9893448c85405a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB225.tmp
MD5
25e0057003074d9d8ee8b2ce56345584

SHA1
2f74299ae7b5282524de9f53e360298c58a51a8e

SHA256
fdf69448a3ba00444fc62d3340140c7c8bcaed38d45bb347099c8ca5c0d95e80

SHA512
bb90aa5a2c78b78164a4bae3ae0090d5e7961e71a0c9a491c27f7f45d0c8263350254dbd82935e21eee3b48e75d8434b7152d61e9f8d6319686ae2258051dc57

Download Submit
\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
\ProgramData\sqlite3.dll
MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
memory/916-127-0x0000000000000000-mapping.dmp

Download
memory/916-157-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/916-210-0x0000000000D13000-0x0000000000D14000-memory.dmp

Filesize
4KB

Download
memory/916-141-0x0000000006AD0000-0x0000000006AD1000-memory.dmp

Filesize
4KB

Download
memory/916-138-0x0000000000D12000-0x0000000000D13000-memory.dmp

Filesize
4KB

Download
memory/916-199-0x000000007F760000-0x000000007F761000-memory.dmp

Filesize
4KB

Download
memory/916-174-0x0000000008B60000-0x0000000008B93000-memory.dmp

Filesize
204KB

Download
memory/916-131-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/916-130-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/916-144-0x0000000006B70000-0x0000000006B71000-memory.dmp

Filesize
4KB

Download
memory/916-151-0x0000000007750000-0x0000000007751000-memory.dmp

Filesize
4KB

Download
memory/916-148-0x00000000073D0000-0x00000000073D1000-memory.dmp

Filesize
4KB

Download
memory/916-146-0x0000000006BE0000-0x0000000006BE1000-memory.dmp

Filesize
4KB

Download
memory/916-137-0x0000000000D10000-0x0000000000D11000-memory.dmp

Filesize
4KB

Download
memory/1208-139-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1208-140-0x000000000040717B-mapping.dmp

Download
memory/1208-143-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1708-202-0x0000000000000000-mapping.dmp

Download
memory/1852-201-0x0000000000000000-mapping.dmp

Download
memory/2688-122-0x0000000005CB0000-0x0000000005CB1000-memory.dmp

Filesize
4KB

Download
memory/2688-121-0x0000000005740000-0x00000000057A5000-memory.dmp

Filesize
404KB

Download
memory/2688-117-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

Filesize
4KB

Download
memory/2688-118-0x0000000005140000-0x0000000005141000-memory.dmp

Filesize
4KB

Download
memory/2688-115-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/2688-119-0x0000000004EA0000-0x0000000004EA6000-memory.dmp

Filesize
24KB

Download
memory/2688-120-0x00000000056A0000-0x00000000056A1000-memory.dmp

Filesize
4KB

Download
memory/2824-129-0x0000000000000000-mapping.dmp

Download
memory/2948-128-0x0000000006E20000-0x0000000006E21000-memory.dmp

Filesize
4KB

Download
memory/2948-156-0x0000000000D70000-0x0000000000D71000-memory.dmp

Filesize
4KB

Download
memory/2948-154-0x0000000007EC0000-0x0000000007EC1000-memory.dmp

Filesize
4KB

Download
memory/2948-136-0x0000000000EB2000-0x0000000000EB3000-memory.dmp

Filesize
4KB

Download
memory/2948-187-0x0000000008BA0000-0x0000000008BA1000-memory.dmp

Filesize
4KB

Download
memory/2948-152-0x0000000007E70000-0x0000000007E71000-memory.dmp

Filesize
4KB

Download
memory/2948-200-0x000000007E7A0000-0x000000007E7A1000-memory.dmp

Filesize
4KB

Download
memory/2948-126-0x0000000004330000-0x0000000004331000-memory.dmp

Filesize
4KB

Download
memory/2948-125-0x0000000000D70000-0x0000000000D71000-memory.dmp

Filesize
4KB

Download
memory/2948-209-0x0000000000EB3000-0x0000000000EB4000-memory.dmp

Filesize
4KB

Download
memory/2948-124-0x0000000000D70000-0x0000000000D71000-memory.dmp

Filesize
4KB

Download
memory/2948-123-0x0000000000000000-mapping.dmp

Download
memory/2948-135-0x0000000000EB0000-0x0000000000EB1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads