d4b7396e438e3b765824bfda728d6baa25e211aa62e5026631402015a9a7aee4

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/09/2024, 02:58

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General

Target

2561e34a79d477b74ee065ac7dcd09b0N.exe
Size

69KB
MD5

2561e34a79d477b74ee065ac7dcd09b0
SHA1

8be7e155a68c99295a1d2499dc6d7b957feadbdb
SHA256

d4b7396e438e3b765824bfda728d6baa25e211aa62e5026631402015a9a7aee4
SHA512

312e1d795ec96220d3f47a13910c7b2e5a81ca628c3c2635fc90f1e11811b405e3e7a0327e7b6033c8199e5bb9c7cb70f687b51ab10995fabf9d6b3644b07389
SSDEEP

1536:0MwtZt0LljGy6uoRQBoyWbh8UH9SZ47Qn/DaBzv3NGxsNeNX:tOsZ6yDOH9SZ4uD+pA

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2840	olacweegim.exe

Loads dropped DLL 1 IoCs

pid	Process
2700	2561e34a79d477b74ee065ac7dcd09b0N.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2700-0-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral1/files/0x000b000000012281-3.dat	upx
behavioral1/memory/2700-7-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral1/memory/2840-10-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral1/memory/2840-9-0x0000000000400000-0x000000000041B000-memory.dmp	upx

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
3	checkip.dyndns.org

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	2561e34a79d477b74ee065ac7dcd09b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	olacweegim.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 2840	2700	2561e34a79d477b74ee065ac7dcd09b0N.exe	31
PID 2700 wrote to memory of 2840	2700	2561e34a79d477b74ee065ac7dcd09b0N.exe	31
PID 2700 wrote to memory of 2840	2700	2561e34a79d477b74ee065ac7dcd09b0N.exe	31
PID 2700 wrote to memory of 2840	2700	2561e34a79d477b74ee065ac7dcd09b0N.exe	31

C:\Users\Admin\AppData\Local\Temp\2561e34a79d477b74ee065ac7dcd09b0N.exe
"C:\Users\Admin\AppData\Local\Temp\2561e34a79d477b74ee065ac7dcd09b0N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Users\Admin\AppData\Local\Temp\olacweegim.exe
  C:\Users\Admin\AppData\Local\Temp\olacweegim.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
69KB

MD5
11112f028aa551e5c0cbaab89c0bd695

SHA1
8b5751cf7c7b3a607b3888a877726c586d44b2b7

SHA256
00ce46d3b4864b754ec656e759a4151088fd55674e342c6f3b4d3a103e0184f7

SHA512
e57d09bef98d2057240527c63d5d0d71b63b5224c12ced73b1169eedb704403791bdb2305cbad18f1f17cdfa0dc4265bb03e3eab0bcfbfb21aa023829c9061a2

Download Submit
memory/2700-0-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2700-2-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/2700-7-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2840-10-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2840-9-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download