f01c40059ca6f555a22b105a881797b9dad1c8b748721b231e0354e7a4940894

Analysis

max time kernel
135s
max time network
41s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 03:00

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General

Target

f01c40059ca6f555a22b105a881797b9dad1c8b748721b231e0354e7a4940894.exe
Size

285KB
MD5

cbc709be817d9d090ca2490aad1f5e22
SHA1

e375484efb972dd801dbf48e82f49ea0deafea8d
SHA256

f01c40059ca6f555a22b105a881797b9dad1c8b748721b231e0354e7a4940894
SHA512

0ad197b61eba3c49c0f3efbb04bbf0a8f2cb2080f5ec14477f12f5e1ef1dd7a3d27ce655f49ed5daa793879835a08834d1a6111e2e4f9b4aabc769677d860af4
SSDEEP

6144:K1tC/lxQEMOG/OIgcwKQgno63E2fMXh9x0C8jpUGKq:K6xwOGdwKJoOIhr89UGKq

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
728	olkn.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\101E19E8 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\olkn.exe"	f01c40059ca6f555a22b105a881797b9dad1c8b748721b231e0354e7a4940894.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\A:	olkn.exe
File opened (read-only)	\??\H:	olkn.exe
File opened (read-only)	\??\L:	olkn.exe
File opened (read-only)	\??\W:	olkn.exe
File opened (read-only)	\??\X:	olkn.exe
File opened (read-only)	\??\Y:	olkn.exe
File opened (read-only)	\??\B:	olkn.exe
File opened (read-only)	\??\J:	olkn.exe
File opened (read-only)	\??\M:	olkn.exe
File opened (read-only)	\??\P:	olkn.exe
File opened (read-only)	\??\S:	olkn.exe
File opened (read-only)	\??\T:	olkn.exe
File opened (read-only)	\??\V:	olkn.exe
File opened (read-only)	\??\G:	olkn.exe
File opened (read-only)	\??\K:	olkn.exe
File opened (read-only)	\??\N:	olkn.exe
File opened (read-only)	\??\O:	olkn.exe
File opened (read-only)	\??\U:	olkn.exe
File opened (read-only)	\??\E:	olkn.exe
File opened (read-only)	\??\F:	olkn.exe
File opened (read-only)	\??\I:	olkn.exe
File opened (read-only)	\??\Q:	olkn.exe
File opened (read-only)	\??\R:	olkn.exe
File opened (read-only)	\??\Z:	olkn.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\D01E88A3 = "3879886737"	olkn.exe

C:\Users\Admin\AppData\Local\Temp\f01c40059ca6f555a22b105a881797b9dad1c8b748721b231e0354e7a4940894.exe
"C:\Users\Admin\AppData\Local\Temp\f01c40059ca6f555a22b105a881797b9dad1c8b748721b231e0354e7a4940894.exe"
1⤵
- Adds Run key to start application
PID:1348

C:\Users\Admin\AppData\Local\Temp\olkn.exe
C:\Users\Admin\AppData\Local\Temp\olkn.exe -svc
1⤵
- Executes dropped EXE
- Enumerates connected drives
- Modifies Internet Explorer settings
PID:728

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\olkn.exe

Filesize
285KB

MD5
cbc709be817d9d090ca2490aad1f5e22

SHA1
e375484efb972dd801dbf48e82f49ea0deafea8d

SHA256
f01c40059ca6f555a22b105a881797b9dad1c8b748721b231e0354e7a4940894

SHA512
0ad197b61eba3c49c0f3efbb04bbf0a8f2cb2080f5ec14477f12f5e1ef1dd7a3d27ce655f49ed5daa793879835a08834d1a6111e2e4f9b4aabc769677d860af4

Download Submit
\??\c:\users\admin\appdata\local\temp\olkn.exe

Filesize
285KB

MD5
cbc709be817d9d090ca2490aad1f5e22

SHA1
e375484efb972dd801dbf48e82f49ea0deafea8d

SHA256
f01c40059ca6f555a22b105a881797b9dad1c8b748721b231e0354e7a4940894

SHA512
0ad197b61eba3c49c0f3efbb04bbf0a8f2cb2080f5ec14477f12f5e1ef1dd7a3d27ce655f49ed5daa793879835a08834d1a6111e2e4f9b4aabc769677d860af4

Download Submit
memory/728-69-0x0000000000400000-0x0000000000458200-memory.dmp

Filesize
352KB

Download
memory/728-81-0x0000000000240000-0x000000000025A000-memory.dmp

Filesize
104KB

Download
memory/728-84-0x0000000000240000-0x000000000025A000-memory.dmp

Filesize
104KB

Download
memory/1348-54-0x0000000000400000-0x0000000000458200-memory.dmp

Filesize
352KB

Download
memory/1348-55-0x0000000000220000-0x0000000000232000-memory.dmp

Filesize
72KB

Download
memory/1348-56-0x0000000000240000-0x000000000025A000-memory.dmp

Filesize
104KB

Download
memory/1348-57-0x0000000074F41000-0x0000000074F43000-memory.dmp

Filesize
8KB

Download
memory/1348-58-0x0000000000240000-0x000000000025A000-memory.dmp

Filesize
104KB

Download
memory/1348-67-0x0000000000240000-0x000000000025A000-memory.dmp

Filesize
104KB

Download
memory/1348-83-0x0000000000240000-0x000000000025A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads