dc158cf497f524b3120a1e34ec6fb16db5d34242b17bf412e5e7920c1c77f1b3

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-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

Executes dropped EXE 1 IoCs

pid	Process
2672	tezin.exe

Loads dropped DLL 1 IoCs

pid	Process
2320	NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2320-0-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral1/memory/2320-2-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral1/files/0x00070000000120bd-4.dat	upx
behavioral1/files/0x00070000000120bd-9.dat	upx
behavioral1/files/0x00070000000120bd-8.dat	upx
behavioral1/memory/2672-10-0x0000000000400000-0x000000000040D000-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 4 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2672	2320	NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe	28
PID 2320 wrote to memory of 2672	2320	NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe	28
PID 2320 wrote to memory of 2672	2320	NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe	28
PID 2320 wrote to memory of 2672	2320	NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.1983fda6ca0c155dea871e49a3be5070_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Local\Temp\tezin.exe
  "C:\Users\Admin\AppData\Local\Temp\tezin.exe"
  2⤵
  - Executes dropped EXE
  PID:2672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\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
\Users\Admin\AppData\Local\Temp\tezin.exe

Filesize
23KB

MD5
bdad1136369759956dc36b1aa39db4d5

SHA1
f5b6047b499f3dff59fdb130937d229b90bd66bb

SHA256
69b816774b87ffed7217f912c2b6db06053d504a3fa61addca0285226cd2fefb

SHA512
13ed8dee964c1c326ba990d9f6036e2a7a25e9ce358bb33019e236cf2727ffefc8542fae58c7b99615daedf29630e40067f120cc455e37c9308a1903108381be

Download Submit
memory/2320-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2320-2-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2672-10-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download