578f7872fca2a2be0337a29e485824218a33437c7601524695ccaa6ab31a561e

Analysis

max time kernel
111s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:16

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General

Target

578f7872fca2a2be0337a29e485824218a33437c7601524695ccaa6ab31a561eN.exe
Size

34KB
MD5

df37e8cbe90d8f42c57631fc3b0f9360
SHA1

5d6a7a45e83c3921825ec44b7070d46091ccfeee
SHA256

578f7872fca2a2be0337a29e485824218a33437c7601524695ccaa6ab31a561e
SHA512

aff75b4a082717712ee18d2a108fe143f6c30d169da9d88e386d593929594a3f87c9f1ec5751b8dc338a38b9184e83986860fc0bea59c62091e68dfadc92bfbb
SSDEEP

768:bROjawZEjbhxnbcuyD7U9kXfn62tH/1/LpP+0:bRO2wZEjbnouy8Gv6iH/NLpJ

Score

7^/10

discovery upx

Malware Config

Signatures

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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	578f7872fca2a2be0337a29e485824218a33437c7601524695ccaa6ab31a561eN.exe

Executes dropped EXE 1 IoCs

pid	Process
4796	rewok.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3368-0-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/files/0x000c000000023b0b-13.dat	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	578f7872fca2a2be0337a29e485824218a33437c7601524695ccaa6ab31a561eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rewok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3368 wrote to memory of 4796	3368	578f7872fca2a2be0337a29e485824218a33437c7601524695ccaa6ab31a561eN.exe	86
PID 3368 wrote to memory of 4796	3368	578f7872fca2a2be0337a29e485824218a33437c7601524695ccaa6ab31a561eN.exe	86
PID 3368 wrote to memory of 4796	3368	578f7872fca2a2be0337a29e485824218a33437c7601524695ccaa6ab31a561eN.exe	86

C:\Users\Admin\AppData\Local\Temp\578f7872fca2a2be0337a29e485824218a33437c7601524695ccaa6ab31a561eN.exe
"C:\Users\Admin\AppData\Local\Temp\578f7872fca2a2be0337a29e485824218a33437c7601524695ccaa6ab31a561eN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3368
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4796

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
34KB

MD5
0bc07a96758099723e3d9e9942c0b80d

SHA1
2af4a4f119c584c0e703f9326cb39bc25f58db27

SHA256
6bed7515c6075380a249d8fceec8ecae5fe2d5a8816fe70b922f8e4646de8cbc

SHA512
3ab91b4b270c96d16f03ca9a6dad2dc9f058b75c7cfba585be2eace40ed1982c2f5b535cde58437b89209852d9b0320c96a0e00a0d7c1b22f717fcabcb0b208b

Download Submit
memory/3368-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3368-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3368-2-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3368-3-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4796-18-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download