f38dd5dc3f8589bc824e93993008aadaf7336dece1a39fad862efe63a45f403b

Analysis

max time kernel
189s
max time network
198s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2022, 20:01

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

f38dd5dc3f8589bc824e93993008aadaf7336dece1a39fad862efe63a45f403b.exe
Size

1.1MB
MD5

9241dccdbc643b83b848aaa3b7bf1edd
SHA1

2edf946d172d2305fdd270be21f3c769a2b74b56
SHA256

f38dd5dc3f8589bc824e93993008aadaf7336dece1a39fad862efe63a45f403b
SHA512

d7d1120da38a679c7f80fc084739f0378aa4046265befb13280dd1b456957d0b9282ed13effe482bce7af762440d83a9b68dd3bb6c9935ed98d4f6794f8c9750
SSDEEP

24576:lI4D+SK9c8wA2ChKnPxTl3Zqv9GWCUJIVJj5M:lIbWRYetl8VrI/j5M

Score

8^/10

themida upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3628	b2e.exe
5008	batchfile.bat

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/220-132-0x0000000000400000-0x000000000052F000-memory.dmp	upx
behavioral2/memory/220-136-0x0000000000400000-0x000000000052F000-memory.dmp	upx

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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	f38dd5dc3f8589bc824e93993008aadaf7336dece1a39fad862efe63a45f403b.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	b2e.exe

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/files/0x0008000000023153-138.dat	themida
behavioral2/files/0x0008000000023153-139.dat	themida

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 220 wrote to memory of 3628	220	f38dd5dc3f8589bc824e93993008aadaf7336dece1a39fad862efe63a45f403b.exe	84
PID 220 wrote to memory of 3628	220	f38dd5dc3f8589bc824e93993008aadaf7336dece1a39fad862efe63a45f403b.exe	84
PID 220 wrote to memory of 3628	220	f38dd5dc3f8589bc824e93993008aadaf7336dece1a39fad862efe63a45f403b.exe	84
PID 3628 wrote to memory of 5008	3628	b2e.exe	85
PID 3628 wrote to memory of 5008	3628	b2e.exe	85
PID 3628 wrote to memory of 5008	3628	b2e.exe	85

C:\Users\Admin\AppData\Local\Temp\f38dd5dc3f8589bc824e93993008aadaf7336dece1a39fad862efe63a45f403b.exe
"C:\Users\Admin\AppData\Local\Temp\f38dd5dc3f8589bc824e93993008aadaf7336dece1a39fad862efe63a45f403b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\24CE.tmp\b2e.exe
  "C:\Users\Admin\AppData\Local\Temp\24CE.tmp\b2e.exe" C:\Users\Admin\AppData\Local\Temp\24CE.tmp\b2e.exe C:\Users\Admin\AppData\Local\Temp "C:\Users\Admin\AppData\Local\Temp\f38dd5dc3f8589bc824e93993008aadaf7336dece1a39fad862efe63a45f403b.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:3628
- - C:\Users\Admin\AppData\Local\Temp\3095.tmp\batchfile.bat
    "C:\Users\Admin\AppData\Local\Temp\3095.tmp\batchfile.bat"
    3⤵
    - Executes dropped EXE
    PID:5008

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\24CE.tmp\b2e.exe

Filesize
1.2MB

MD5
da8cef5afbaa5a291b56ccbe8f3a5502

SHA1
3a1e55dc4327917f8368d132240fb9e2544d9694

SHA256
cb1df0d7eafa58fdb852f8616edf8ef46c1897df9dcf6bfe7b60b23f5d7bc864

SHA512
ee2aa7189b7b4801dce66ce37d10f6d91d7aac2b9aea4cbb1455a9d16f04a4a2593228732bab0aaa9d6f6c3b21ca7d5b6c961a003fb9842dce03b52bdd949c6c

Download Submit
C:\Users\Admin\AppData\Local\Temp\24CE.tmp\b2e.exe

Filesize
1.2MB

MD5
da8cef5afbaa5a291b56ccbe8f3a5502

SHA1
3a1e55dc4327917f8368d132240fb9e2544d9694

SHA256
cb1df0d7eafa58fdb852f8616edf8ef46c1897df9dcf6bfe7b60b23f5d7bc864

SHA512
ee2aa7189b7b4801dce66ce37d10f6d91d7aac2b9aea4cbb1455a9d16f04a4a2593228732bab0aaa9d6f6c3b21ca7d5b6c961a003fb9842dce03b52bdd949c6c

Download Submit
C:\Users\Admin\AppData\Local\Temp\3095.tmp\batchfile.bat

Filesize
1.1MB

MD5
ae500037d010cc1d7f266ae547d8fe94

SHA1
34a05d603ab040594e69340b63a38f7054743afd

SHA256
f4be48b85d09da0a39e330b82a07f506fe2ee1663a32f87342594c25f8cc8451

SHA512
7206ac5b15d0345867dcb8d9556aeee7c0c77fd42383204161eaeff39a7eb1ca44cdd1e354decfaecb5f6cd17e58d27aa0fe67a515ba5981f4f6e57a70494ca9

Download Submit
C:\Users\Admin\AppData\Local\Temp\3095.tmp\batchfile.bat

Filesize
1.1MB

MD5
ae500037d010cc1d7f266ae547d8fe94

SHA1
34a05d603ab040594e69340b63a38f7054743afd

SHA256
f4be48b85d09da0a39e330b82a07f506fe2ee1663a32f87342594c25f8cc8451

SHA512
7206ac5b15d0345867dcb8d9556aeee7c0c77fd42383204161eaeff39a7eb1ca44cdd1e354decfaecb5f6cd17e58d27aa0fe67a515ba5981f4f6e57a70494ca9

Download Submit
memory/220-132-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/220-136-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/3628-140-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/5008-141-0x0000000002310000-0x00000000023EC000-memory.dmp

Filesize
880KB

Download