36d302894a860391d8153387facbdcd46ca6ca581187e9d25a74b5082c4f27ef

Analysis

max time kernel
30s
max time network
20s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
13-08-2024 22:39

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General

Target

ba2f6eed79d9175437127c219e6b46b0N.exe
Size

135KB
MD5

ba2f6eed79d9175437127c219e6b46b0
SHA1

6c192d73c56a75fd98cb60b65a445fba1ad4ccc8
SHA256

36d302894a860391d8153387facbdcd46ca6ca581187e9d25a74b5082c4f27ef
SHA512

9718216b57d981f663dec0d1c3cf380b6d42e58c961ff8cec5a750e2fffe2a88429dd948ed2a3e1fcf1b0a50a79cbf4776cc69266c0a6b3bb73c6dfd29c44b45
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SO0:YfU/WF6QMauSuiWNi9eNOl0007NZIO0

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2868	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
3036	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
3016	ba2f6eed79d9175437127c219e6b46b0N.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3016-4-0x0000000000CF0000-0x0000000000D18000-memory.dmp	upx
behavioral1/files/0x0008000000018d89-6.dat	upx
behavioral1/memory/3036-7-0x0000000000AD0000-0x0000000000AF8000-memory.dmp	upx
behavioral1/memory/3016-9-0x0000000000CF0000-0x0000000000D18000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	ba2f6eed79d9175437127c219e6b46b0N.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

System Location Discovery: System Language Discovery 1 TTPs 3 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	ba2f6eed79d9175437127c219e6b46b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 3036	3016	ba2f6eed79d9175437127c219e6b46b0N.exe	30
PID 3016 wrote to memory of 3036	3016	ba2f6eed79d9175437127c219e6b46b0N.exe	30
PID 3016 wrote to memory of 3036	3016	ba2f6eed79d9175437127c219e6b46b0N.exe	30
PID 3016 wrote to memory of 3036	3016	ba2f6eed79d9175437127c219e6b46b0N.exe	30
PID 3016 wrote to memory of 2868	3016	ba2f6eed79d9175437127c219e6b46b0N.exe	32
PID 3016 wrote to memory of 2868	3016	ba2f6eed79d9175437127c219e6b46b0N.exe	32
PID 3016 wrote to memory of 2868	3016	ba2f6eed79d9175437127c219e6b46b0N.exe	32
PID 3016 wrote to memory of 2868	3016	ba2f6eed79d9175437127c219e6b46b0N.exe	32

C:\Users\Admin\AppData\Local\Temp\ba2f6eed79d9175437127c219e6b46b0N.exe
"C:\Users\Admin\AppData\Local\Temp\ba2f6eed79d9175437127c219e6b46b0N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3016
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\ba2f6eed79d9175437127c219e6b46b0N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Update\wuauclt.exe

Filesize
135KB

MD5
3a2e106889de301cea686334911ca1ea

SHA1
42f9a5114a9a40fc119c9cdcfd8ee7fd1a3d0104

SHA256
c913f61e6ab8ef4c9d995ee7cf8e070d869762f48b8c79f9088fa69413bda92d

SHA512
06efb7f498f42484068d38fb1e0821524d6e4ac92718cec50b26bf089535bf646762e74aee7fe17a9641eefba86ff9ed50747aacdaf880c46870ea0b43ac29b1

Download Submit
memory/3016-4-0x0000000000CF0000-0x0000000000D18000-memory.dmp

Filesize
160KB

Download
memory/3016-5-0x0000000000AD0000-0x0000000000AF8000-memory.dmp

Filesize
160KB

Download
memory/3016-8-0x0000000000AD0000-0x0000000000AF8000-memory.dmp

Filesize
160KB

Download
memory/3016-9-0x0000000000CF0000-0x0000000000D18000-memory.dmp

Filesize
160KB

Download
memory/3036-7-0x0000000000AD0000-0x0000000000AF8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads