d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95

General

Target

d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe
Size

379KB
MD5

091079d59f274be93f30fe383e730d4b
SHA1

cffa451b45f6b6c643955884568ac1f4ebf71211
SHA256

d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95
SHA512

4b21bb01588c1360e2fb12d9183c427b18989b1b03912d31cdc64f8e5a87b9ee8785efda2c0561075550743b379b2329c180733fbdd83c18a12831143d96b5d4
SSDEEP

6144:Slux3bkUTm3J905ftPRW2zSEyPJTfPJ7Jagz:z+klnRvKRDPx4c

Score

8^/10

persistence upx

Malware Config

Signatures

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2348-133-0x0000000000400000-0x0000000000499000-memory.dmp	upx
behavioral2/memory/2348-135-0x0000000000400000-0x0000000000499000-memory.dmp	upx
behavioral2/memory/2348-137-0x0000000000400000-0x0000000000499000-memory.dmp	upx
behavioral2/memory/2348-136-0x0000000000400000-0x0000000000499000-memory.dmp	upx
behavioral2/memory/2348-139-0x0000000000400000-0x0000000000499000-memory.dmp	upx

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\BMP = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe /cs:1 "	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BMP = "\"C:\\b2a532\\BMb2a_2164.exe\" /s"	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe

Checks for any installed AV software in registry 1 TTPs 1 IoCs

Security Software Discovery

T1063

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Eset\Nod\	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3736 set thread context of 2348	3736	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe	83

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
3508	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3508	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3736 wrote to memory of 2348	3736	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe	83
PID 3736 wrote to memory of 2348	3736	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe	83
PID 3736 wrote to memory of 2348	3736	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe	83
PID 3736 wrote to memory of 2348	3736	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe	83
PID 3736 wrote to memory of 2348	3736	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe	83
PID 2348 wrote to memory of 3508	2348	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe	84
PID 2348 wrote to memory of 3508	2348	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe	84
PID 2348 wrote to memory of 3508	2348	d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe	84

C:\Users\Admin\AppData\Local\Temp\d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe
"C:\Users\Admin\AppData\Local\Temp\d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3736
- C:\Users\Admin\AppData\Local\Temp\d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe
  "C:\Users\Admin\AppData\Local\Temp\d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe" "C:\Users\Admin\AppData\Local\Temp\d72a01687667ff4757add8b8031cb39183f77fe757b99e2b1109d3e215195b95.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Checks for any installed AV software in registry
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill.exe /F /IM MSASCui* /IM avg* /IM ash* /IM McSA* /IM msse*
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3508

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Security Software Discovery

1

T1063

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2348-133-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download
memory/2348-135-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download
memory/2348-137-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download
memory/2348-136-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download
memory/2348-139-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download

Analysis

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