29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088

General

Target

29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe
Size

134KB
MD5

530a0782e996da37958f7ce8fa3f4190
SHA1

1282ddea03a8b2e00295f7ee5afd22cd1abb1608
SHA256

29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088
SHA512

bdd23c2d10efaeb9759ca8e4a102904727d4ee3e77ead68a25256d972ba7d9748c3fe2bae2fc59b5c028a0d78b1f0db159f35c5ea99c699687d3d4db4323375f
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOL:YfU/WF6QMauSuiWNi9eNOl0007NZIOL

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2684	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2748	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
2656	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe

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"	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2656-0-0x0000000000EB0000-0x0000000000ED8000-memory.dmp	upx
behavioral1/files/0x000800000001937b-2.dat	upx
behavioral1/memory/2748-7-0x0000000000CD0000-0x0000000000CF8000-memory.dmp	upx
behavioral1/memory/2656-8-0x0000000000EB0000-0x0000000000ED8000-memory.dmp	upx
behavioral1/memory/2748-10-0x0000000000CD0000-0x0000000000CF8000-memory.dmp	upx
behavioral1/memory/2656-11-0x0000000000EB0000-0x0000000000ED8000-memory.dmp	upx

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	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.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 2656 wrote to memory of 2748	2656	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe	30
PID 2656 wrote to memory of 2748	2656	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe	30
PID 2656 wrote to memory of 2748	2656	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe	30
PID 2656 wrote to memory of 2748	2656	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe	30
PID 2656 wrote to memory of 2684	2656	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe	31
PID 2656 wrote to memory of 2684	2656	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe	31
PID 2656 wrote to memory of 2684	2656	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe	31
PID 2656 wrote to memory of 2684	2656	29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe	31

C:\Users\Admin\AppData\Local\Temp\29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe
"C:\Users\Admin\AppData\Local\Temp\29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\29ae9a0bb7112c12818c54d4950f27ffd021354baa3350f1a88807179d582088N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\Update\wuauclt.exe

Filesize
134KB

MD5
6f81ec01c9d386dc3ecab1ee05cbba5e

SHA1
4b51fe0047a6ff687fa343153953d7094b1fb3c6

SHA256
d72b9820effe5038c18c8a755eec5638027b456c330020ff75b3efc94b563859

SHA512
4e0262ffad72da5606a016ef9d60bab7f238e92ab092f9b65363e155232174d3f64b3a1b20f1a2e4cd6ba3f743dea2730565237b3d353fa2d6ffda91ced19f79

Download Submit
memory/2656-0-0x0000000000EB0000-0x0000000000ED8000-memory.dmp

Filesize
160KB

Download
memory/2656-6-0x0000000000CD0000-0x0000000000CF8000-memory.dmp

Filesize
160KB

Download
memory/2656-8-0x0000000000EB0000-0x0000000000ED8000-memory.dmp

Filesize
160KB

Download
memory/2656-9-0x0000000000CD0000-0x0000000000CF8000-memory.dmp

Filesize
160KB

Download
memory/2656-12-0x0000000000CD0000-0x0000000000CF8000-memory.dmp

Filesize
160KB

Download
memory/2656-11-0x0000000000EB0000-0x0000000000ED8000-memory.dmp

Filesize
160KB

Download
memory/2748-7-0x0000000000CD0000-0x0000000000CF8000-memory.dmp

Filesize
160KB

Download
memory/2748-10-0x0000000000CD0000-0x0000000000CF8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads