db9ac5558ca84d3a90428ddab6cbef971ca4051095438370481dbf7c28e2bc78

Analysis

max time kernel
143s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
17-07-2023 11:27

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General

Target

tmp.exe
Size

18.8MB
MD5

a034baf605ae2fb67993ea8a61238c33
SHA1

85417e7664ed5743cec823b9e636f00047d4e0ad
SHA256

db9ac5558ca84d3a90428ddab6cbef971ca4051095438370481dbf7c28e2bc78
SHA512

33beadbff7980438b99460e01ec48ab47ceb5a6970bfef5d53c4a0c0b099149a06bae9cc4a9a6ba65c85cbcf8a7068548407041774a90a948543643e57e2485b
SSDEEP

393216:xeRzdW+Pi4lSNYmYt+XVhIZgze2pgZaqWW3JY6o+GG2a+8MxZ2RR:xeRzdW2FlYfIaVhIke2KsqWW5Y6jM80s

Score

7^/10

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-1-5-21-3195054982-4292022746-1467505928-1000\Control Panel\International\Geo\Nation	tmp.exe

Executes dropped EXE 1 IoCs

pid	Process
4624	irsetup.exe

Loads dropped DLL 1 IoCs

pid	Process
4624	irsetup.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000600000002320f-138.dat	upx
behavioral2/files/0x000600000002320f-143.dat	upx
behavioral2/files/0x000600000002320f-144.dat	upx
behavioral2/memory/4624-145-0x0000000000400000-0x00000000007CE000-memory.dmp	upx
behavioral2/memory/4624-157-0x0000000000400000-0x00000000007CE000-memory.dmp	upx
behavioral2/memory/4624-161-0x0000000000400000-0x00000000007CE000-memory.dmp	upx
behavioral2/memory/4624-162-0x0000000000400000-0x00000000007CE000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Matrix\Device Client 7.10.0\Device Client 7.10.0 Setup Log.txt	irsetup.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4624	irsetup.exe
4624	irsetup.exe
4624	irsetup.exe
4624	irsetup.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1592 wrote to memory of 4624	1592	tmp.exe	86
PID 1592 wrote to memory of 4624	1592	tmp.exe	86
PID 1592 wrote to memory of 4624	1592	tmp.exe	86

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1592
- C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe
  "C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe" __IRAOFF:1758466 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\tmp.exe" "__IRCT:0" "__IRTSS:0" "__IRSID:S-1-5-21-3195054982-4292022746-1467505928-1000"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of SetWindowsHookEx
  PID:4624

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\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe

Filesize
1.3MB

MD5
12b3b10657891cfa2bc0bed894750024

SHA1
1f9a378538a7236021ac91d02990eed04011ec77

SHA256
248e769a67f8e82a2f8af1c809f732d0baa5b0023d8b3e204f4c9ede979aec85

SHA512
1f0991b8e5788797c9b57d05077986a22abdb49c8eddca6f1ea379c9cd7a6ac045cb172a9152ce756509d09bfbe633df5ce11f60bf42d27bcda9be9674b3a242

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe

Filesize
1.3MB

MD5
12b3b10657891cfa2bc0bed894750024

SHA1
1f9a378538a7236021ac91d02990eed04011ec77

SHA256
248e769a67f8e82a2f8af1c809f732d0baa5b0023d8b3e204f4c9ede979aec85

SHA512
1f0991b8e5788797c9b57d05077986a22abdb49c8eddca6f1ea379c9cd7a6ac045cb172a9152ce756509d09bfbe633df5ce11f60bf42d27bcda9be9674b3a242

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe

Filesize
1.3MB

MD5
12b3b10657891cfa2bc0bed894750024

SHA1
1f9a378538a7236021ac91d02990eed04011ec77

SHA256
248e769a67f8e82a2f8af1c809f732d0baa5b0023d8b3e204f4c9ede979aec85

SHA512
1f0991b8e5788797c9b57d05077986a22abdb49c8eddca6f1ea379c9cd7a6ac045cb172a9152ce756509d09bfbe633df5ce11f60bf42d27bcda9be9674b3a242

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\lua5.1.dll

Filesize
320KB

MD5
48e1d57965a584425a9aba84b668e416

SHA1
4d8e9f0f0b1848b37e7acd21ce126e2b572cccef

SHA256
200fc76009fcad1e7651094dd1b3b4d31a01659972736d5658a5f9b10884b577

SHA512
397afbcbaf8143c9a7f0cff434c1da33659ec7993f57b55cdd7d98f82a038851c4c103a2d6ad611c9989903cbb7e1666c1f35e4bd5c4b0cf59fd20fdbba069bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\lua5.1.dll

Filesize
320KB

MD5
48e1d57965a584425a9aba84b668e416

SHA1
4d8e9f0f0b1848b37e7acd21ce126e2b572cccef

SHA256
200fc76009fcad1e7651094dd1b3b4d31a01659972736d5658a5f9b10884b577

SHA512
397afbcbaf8143c9a7f0cff434c1da33659ec7993f57b55cdd7d98f82a038851c4c103a2d6ad611c9989903cbb7e1666c1f35e4bd5c4b0cf59fd20fdbba069bf

Download Submit
memory/4624-145-0x0000000000400000-0x00000000007CE000-memory.dmp

Filesize
3.8MB

Download
memory/4624-157-0x0000000000400000-0x00000000007CE000-memory.dmp

Filesize
3.8MB

Download
memory/4624-161-0x0000000000400000-0x00000000007CE000-memory.dmp

Filesize
3.8MB

Download
memory/4624-162-0x0000000000400000-0x00000000007CE000-memory.dmp

Filesize
3.8MB

Download