oblique | 5f16b53fefc21323c4a0a5895b3084a3dc47d26f593ab646939c740cc5c81cc4

Analysis

max time kernel
614s
max time network
633s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2022 21:06

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General

Target

0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711.exe
Size

498KB
MD5

99d55290f6f2d4f2f7315da9b6dfe4e0
SHA1

d171e5f0a3916de88286dc99fdc158855be0ce71
SHA256

0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711
SHA512

655ffce301340439020cf79c0ffca2eddc66328f377bec5cdbf471f2cb9ebfad3176cd73fac3383d3b825b40e730d5dd61373deaa79c401eea064429d40346c2

Score

10^/10

oblique trojan

Malware Config

Signatures

ObliqueRAT
Remote Access Trojan discovered in early 2020.
trojan oblique

Executes dropped EXE 2 IoCs

pid	Process
2088	lphsi.exe
4184	hrss.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation	0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\script.lnk	hrss.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2088	1732	0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711.exe	83
PID 1732 wrote to memory of 2088	1732	0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711.exe	83
PID 1732 wrote to memory of 2088	1732	0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711.exe	83
PID 1732 wrote to memory of 4184	1732	0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711.exe	84
PID 1732 wrote to memory of 4184	1732	0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711.exe	84
PID 1732 wrote to memory of 4184	1732	0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711.exe	84

C:\Users\Admin\AppData\Local\Temp\0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711.exe
"C:\Users\Admin\AppData\Local\Temp\0ca79bf8ca2b0e12ee245cb37f06da4ca397fdd84166d0913fc8ebc3a62b7711.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Public\Video\lphsi.exe
  "C:\Users\Public\Video\lphsi.exe"
  2⤵
  - Executes dropped EXE
  PID:2088
- C:\Users\Public\Video\hrss.exe
  "C:\Users\Public\Video\hrss.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  PID:4184

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Video\hrss.exe

Filesize
214KB

MD5
5de79fd53f3ec570969d404469d3acfb

SHA1
d2fc0fc28650609641169ef43ab6ba27ba1c268b

SHA256
d0db839579dead9fea0feb383ccd57e7b394b3670c3f7240ddec8a4fbf7afe14

SHA512
d19b130eda365e9d2625231113ca65a6543bcd56f9b9727cb17c859a68f2f678be0495f84ae0f17867fda3ff3325f2fe211e4a00fb3d6c8aee41c1f4864be05c

Download Submit
C:\Users\Public\Video\hrss.exe

Filesize
214KB

MD5
5de79fd53f3ec570969d404469d3acfb

SHA1
d2fc0fc28650609641169ef43ab6ba27ba1c268b

SHA256
d0db839579dead9fea0feb383ccd57e7b394b3670c3f7240ddec8a4fbf7afe14

SHA512
d19b130eda365e9d2625231113ca65a6543bcd56f9b9727cb17c859a68f2f678be0495f84ae0f17867fda3ff3325f2fe211e4a00fb3d6c8aee41c1f4864be05c

Download Submit
C:\Users\Public\Video\lphsi.exe

Filesize
201KB

MD5
0bafccfaec9c7d45ce491e4b0ddc1bdf

SHA1
f0fa26da45d04ca36e9eb0acbc2d8ddce881e096

SHA256
9da1a55b88bda3810ccd482051dc7e0088e8539ef8da5ddd29c583f593244e1c

SHA512
c32b734420be1ee3a54dfea117f2fb14353fbd39831d8bbe8a4515c983f0781c38d4bcc8a6c5fd0785693fa3a16add499387bd8add21f706c9927d537e38184e

Download Submit
C:\Users\Public\Video\lphsi.exe

Filesize
201KB

MD5
0bafccfaec9c7d45ce491e4b0ddc1bdf

SHA1
f0fa26da45d04ca36e9eb0acbc2d8ddce881e096

SHA256
9da1a55b88bda3810ccd482051dc7e0088e8539ef8da5ddd29c583f593244e1c

SHA512
c32b734420be1ee3a54dfea117f2fb14353fbd39831d8bbe8a4515c983f0781c38d4bcc8a6c5fd0785693fa3a16add499387bd8add21f706c9927d537e38184e

Download Submit