dc158cf497f524b3120a1e34ec6fb16db5d34242b17bf412e5e7920c1c77f1b3

Analysis

max time kernel
87s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
23/10/2023, 22:01

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General

Target

NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe
Size

23KB
MD5

1983fda6ca0c155dea871e49a3be5070
SHA1

25f3ba6541e47a56671fa2c401ddd148fad6aedb
SHA256

dc158cf497f524b3120a1e34ec6fb16db5d34242b17bf412e5e7920c1c77f1b3
SHA512

ed70ef3d7755b0919426370fdbe063b036e985a631bb48c68ba89a24ebb0b45fe637e706bef5abeeea7a5054170eb736acfe8c0a90c72e229aedc757d2cc32b7
SSDEEP

192:chkoNs66nhxPl2169w5wseaPxy89KSQjqPL+1C8MmjG6+lg9Euj02cSu/i5z87Hz:cSoSBvlDSXqjSyC8M4D+tSe9jEVOn

Score

7^/10

upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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-1-5-21-1114462139-3090196418-29517368-1000\Control Panel\International\Geo\Nation	tezin.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\Control Panel\International\Geo\Nation	NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
4692	tezin.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/540-0-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/memory/540-1-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/files/0x0008000000022dbc-6.dat	upx
behavioral2/files/0x0008000000022dbc-8.dat	upx
behavioral2/files/0x0008000000022dbc-9.dat	upx
behavioral2/memory/4692-11-0x0000000000400000-0x000000000040D000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 4692	540	NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe	82
PID 540 wrote to memory of 4692	540	NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe	82
PID 540 wrote to memory of 4692	540	NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe	82

C:\Users\Admin\AppData\Local\Temp\NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:540
- C:\Users\Admin\AppData\Local\Temp\tezin.exe
  "C:\Users\Admin\AppData\Local\Temp\tezin.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\Admin\AppData\Local\Temp\lsgas.exe

Filesize
9KB

MD5
2426a3a2fe92446199b51441cb05f795

SHA1
4450207524418a58cb413081f51dadc8c046281d

SHA256
44f24798db60df5e3825ff5fed2608df60d741061bd309601041d0b3d0c71070

SHA512
7e5aa499f350a53b0b4bce9c930473bee66b695395f620f1117273a852b92839064daccf00b6a9bd61ba342b6146b5b8923993e9816305af56962d44ef7d0a98

Download Submit
C:\Users\Admin\AppData\Local\Temp\tezin.exe

Filesize
23KB

MD5
bdad1136369759956dc36b1aa39db4d5

SHA1
f5b6047b499f3dff59fdb130937d229b90bd66bb

SHA256
69b816774b87ffed7217f912c2b6db06053d504a3fa61addca0285226cd2fefb

SHA512
13ed8dee964c1c326ba990d9f6036e2a7a25e9ce358bb33019e236cf2727ffefc8542fae58c7b99615daedf29630e40067f120cc455e37c9308a1903108381be

Download Submit
C:\Users\Admin\AppData\Local\Temp\tezin.exe

Filesize
23KB

MD5
bdad1136369759956dc36b1aa39db4d5

SHA1
f5b6047b499f3dff59fdb130937d229b90bd66bb

SHA256
69b816774b87ffed7217f912c2b6db06053d504a3fa61addca0285226cd2fefb

SHA512
13ed8dee964c1c326ba990d9f6036e2a7a25e9ce358bb33019e236cf2727ffefc8542fae58c7b99615daedf29630e40067f120cc455e37c9308a1903108381be

Download Submit
C:\Users\Admin\AppData\Local\Temp\tezin.exe

Filesize
23KB

MD5
bdad1136369759956dc36b1aa39db4d5

SHA1
f5b6047b499f3dff59fdb130937d229b90bd66bb

SHA256
69b816774b87ffed7217f912c2b6db06053d504a3fa61addca0285226cd2fefb

SHA512
13ed8dee964c1c326ba990d9f6036e2a7a25e9ce358bb33019e236cf2727ffefc8542fae58c7b99615daedf29630e40067f120cc455e37c9308a1903108381be

Download Submit
memory/540-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/540-1-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/4692-11-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download