oski | d43a3e7224191e2e6c7639033a7adada48053f4040fcbe5f8892e40cbdb9a86e

General

Target

ORDEN DE COMPRA (2).exe
Size

452KB
MD5

827769160f1c2f95f9695a2d5fb54196
SHA1

9dce9a6f44019f71fdb3269e20fcedd1eb46dcd8
SHA256

d43a3e7224191e2e6c7639033a7adada48053f4040fcbe5f8892e40cbdb9a86e
SHA512

bf063cb3538d6d67f487c6a2b3fa283cd375e2739e40638db3194329c9b8894402c8ee4c7915a29dffcd51505336dfee3a7e3b81303718e30f7b3f8588bdbe4f

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

1532 ORDEN DE COMPRA (2).exe
1532 ORDEN DE COMPRA (2).exe
1532 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 3652 set thread context of 1532 3652 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

4116 schtasks.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1292 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exe

pid process

2860 powershell.exe
4288 powershell.exe
2860 powershell.exe
4288 powershell.exe
4288 powershell.exe
2860 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 4288 powershell.exe
Token: SeDebugPrivilege 2860 powershell.exe
Token: SeDebugPrivilege 1292 taskkill.exe

pid	process
1532	ORDEN DE COMPRA (2).exe
1532	ORDEN DE COMPRA (2).exe
1532	ORDEN DE COMPRA (2).exe

description	pid	process	target process
PID 3652 set thread context of 1532	3652	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
4116	schtasks.exe

pid	process
1292	taskkill.exe

pid	process
2860	powershell.exe
4288	powershell.exe
2860	powershell.exe
4288	powershell.exe
4288	powershell.exe
2860	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4288	powershell.exe
Token: SeDebugPrivilege	2860	powershell.exe
Token: SeDebugPrivilege	1292	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 3652 wrote to memory of 2860	3652	ORDEN DE COMPRA (2).exe	powershell.exe
PID 3652 wrote to memory of 2860	3652	ORDEN DE COMPRA (2).exe	powershell.exe
PID 3652 wrote to memory of 2860	3652	ORDEN DE COMPRA (2).exe	powershell.exe
PID 3652 wrote to memory of 4288	3652	ORDEN DE COMPRA (2).exe	powershell.exe
PID 3652 wrote to memory of 4288	3652	ORDEN DE COMPRA (2).exe	powershell.exe
PID 3652 wrote to memory of 4288	3652	ORDEN DE COMPRA (2).exe	powershell.exe
PID 3652 wrote to memory of 4116	3652	ORDEN DE COMPRA (2).exe	schtasks.exe
PID 3652 wrote to memory of 4116	3652	ORDEN DE COMPRA (2).exe	schtasks.exe
PID 3652 wrote to memory of 4116	3652	ORDEN DE COMPRA (2).exe	schtasks.exe
PID 3652 wrote to memory of 1532	3652	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 3652 wrote to memory of 1532	3652	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 3652 wrote to memory of 1532	3652	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 3652 wrote to memory of 1532	3652	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 3652 wrote to memory of 1532	3652	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 3652 wrote to memory of 1532	3652	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 3652 wrote to memory of 1532	3652	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 3652 wrote to memory of 1532	3652	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 3652 wrote to memory of 1532	3652	ORDEN DE COMPRA (2).exe	ORDEN DE COMPRA (2).exe
PID 1532 wrote to memory of 3224	1532	ORDEN DE COMPRA (2).exe	cmd.exe
PID 1532 wrote to memory of 3224	1532	ORDEN DE COMPRA (2).exe	cmd.exe
PID 1532 wrote to memory of 3224	1532	ORDEN DE COMPRA (2).exe	cmd.exe
PID 3224 wrote to memory of 1292	3224	cmd.exe	taskkill.exe
PID 3224 wrote to memory of 1292	3224	cmd.exe	taskkill.exe
PID 3224 wrote to memory of 1292	3224	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 use of WriteProcessMemory
PID:3652

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:2860

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qOFbFPmreQVBDE.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4288

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qOFbFPmreQVBDE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3276.tmp"
2⤵
- Creates scheduled task(s)
PID:4116

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:1532

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /pid 1532 & erase C:\Users\Admin\AppData\Local\Temp\ORDEN DE COMPRA (2).exe & RD /S /Q C:\\ProgramData\\921581995807608\\* & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:3224

C:\Windows\SysWOW64\taskkill.exe
taskkill /pid 1532
4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1292

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
528a4518ba6ac90256c709ec35f73afa

SHA1
62fa46065418c7b3f6b0c302f955484322a97029

SHA256
6be12663df7e91853b52bea728834aba881d00076ce35f317bf76628e91833b4

SHA512
b3bf24a94211d5f44a55312706e565027a7d6e5ff73ceb3c4ce31745b6c3e1babbfb4ee1559c29d66d8109fddd0e8ddebaf57d66e6cdf5a86980cda1a4f7098f

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C:\Users\Admin\AppData\Local\Temp\tmp3276.tmp
MD5
18b64c99f0bac3298c9cb7d35d8bd782

SHA1
21a68c53607edf4c01c06709c525be7e035757d9

SHA256
23b3d70e28f408d126c91514ff97eeb1e88f2507e6e5bc869b8a2b9dd274b3c5

SHA512
21f32db25d060f7e3f1f0be009e3c6a4a72ba6306647594b25dae213ec6b000ef1321a3f4c1387a14fe01605dc5365aaf20cb6db0c5454c70ab534215e2b04fa

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\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

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memory/1292-342-0x0000000000000000-mapping.dmp

Download
memory/1532-150-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1532-148-0x000000000040717B-mapping.dmp

Download
memory/1532-147-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2860-130-0x0000000004E60000-0x0000000004E61000-memory.dmp

Filesize
4KB

Download
memory/2860-154-0x0000000008270000-0x0000000008271000-memory.dmp

Filesize
4KB

Download
memory/2860-131-0x0000000004E60000-0x0000000004E61000-memory.dmp

Filesize
4KB

Download
memory/2860-233-0x0000000007453000-0x0000000007454000-memory.dmp

Filesize
4KB

Download
memory/2860-200-0x000000007EF00000-0x000000007EF01000-memory.dmp

Filesize
4KB

Download
memory/2860-132-0x0000000004FD0000-0x0000000004FD1000-memory.dmp

Filesize
4KB

Download
memory/2860-136-0x0000000007A90000-0x0000000007A91000-memory.dmp

Filesize
4KB

Download
memory/2860-175-0x00000000098A0000-0x00000000098D3000-memory.dmp

Filesize
204KB

Download
memory/2860-160-0x0000000004E60000-0x0000000004E61000-memory.dmp

Filesize
4KB

Download
memory/2860-141-0x00000000079C0000-0x00000000079C1000-memory.dmp

Filesize
4KB

Download
memory/2860-143-0x00000000081C0000-0x00000000081C1000-memory.dmp

Filesize
4KB

Download
memory/2860-145-0x0000000008490000-0x0000000008491000-memory.dmp

Filesize
4KB

Download
memory/2860-158-0x0000000008C40000-0x0000000008C41000-memory.dmp

Filesize
4KB

Download
memory/2860-127-0x0000000000000000-mapping.dmp

Download
memory/2860-149-0x0000000007450000-0x0000000007451000-memory.dmp

Filesize
4KB

Download
memory/2860-151-0x0000000007452000-0x0000000007453000-memory.dmp

Filesize
4KB

Download
memory/3224-321-0x0000000000000000-mapping.dmp

Download
memory/3652-125-0x0000000007200000-0x0000000007201000-memory.dmp

Filesize
4KB

Download
memory/3652-120-0x0000000004F90000-0x0000000004F91000-memory.dmp

Filesize
4KB

Download
memory/3652-126-0x00000000073A0000-0x0000000007405000-memory.dmp

Filesize
404KB

Download
memory/3652-118-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/3652-121-0x0000000004B30000-0x0000000004B31000-memory.dmp

Filesize
4KB

Download
memory/3652-122-0x0000000004A90000-0x0000000004F8E000-memory.dmp

Filesize
5.0MB

Download
memory/3652-123-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

Filesize
4KB

Download
memory/3652-124-0x0000000004F80000-0x0000000004F86000-memory.dmp

Filesize
24KB

Download
memory/4116-129-0x0000000000000000-mapping.dmp

Download
memory/4288-198-0x000000007EB50000-0x000000007EB51000-memory.dmp

Filesize
4KB

Download
memory/4288-134-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download
memory/4288-153-0x0000000006C32000-0x0000000006C33000-memory.dmp

Filesize
4KB

Download
memory/4288-188-0x0000000008DC0000-0x0000000008DC1000-memory.dmp

Filesize
4KB

Download
memory/4288-139-0x0000000006D80000-0x0000000006D81000-memory.dmp

Filesize
4KB

Download
memory/4288-236-0x0000000006C33000-0x0000000006C34000-memory.dmp

Filesize
4KB

Download
memory/4288-133-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download
memory/4288-161-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download
memory/4288-128-0x0000000000000000-mapping.dmp

Download
memory/4288-156-0x0000000008070000-0x0000000008071000-memory.dmp

Filesize
4KB

Download
memory/4288-152-0x0000000006C30000-0x0000000006C31000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads