1419745b3f6ffe0db358fc0d321a2e9110f1d7088d59587db145b492cf514b48

General

Target

d11668d21bfa63da5e82ba90d3b0eba0N.exe
Size

59KB
MD5

d11668d21bfa63da5e82ba90d3b0eba0
SHA1

78aad0cfc1c8b19e78a9ef3b7f77bd577ce232d7
SHA256

1419745b3f6ffe0db358fc0d321a2e9110f1d7088d59587db145b492cf514b48
SHA512

a54c7a14ec467896c14bd63a59033fcf6a170b71585ce23f0bb8819cdbc18358fc37c24420e6727071dbb720353cbfe2d245ebbfb08bc3f068bdd84f4724a84b
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQ+:OeodiUO4p13b9HiIeoutuh1aQ+

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2884	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
3032	AhnSvc.exe

Loads dropped DLL 2 IoCs

pid	Process
1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe
1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1728-0-0x0000000000220000-0x0000000000247000-memory.dmp	upx
behavioral1/files/0x000700000001868b-8.dat	upx
behavioral1/memory/3032-10-0x0000000001170000-0x0000000001197000-memory.dmp	upx
behavioral1/memory/1728-11-0x0000000000220000-0x0000000000247000-memory.dmp	upx
behavioral1/memory/3032-14-0x0000000001170000-0x0000000001197000-memory.dmp	upx
behavioral1/memory/3032-18-0x0000000001170000-0x0000000001197000-memory.dmp	upx
behavioral1/memory/1728-22-0x0000000000220000-0x0000000000247000-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\AhnUpadate = "\"C:\\ProgramData\\AhnLab\\AhnSvc.exe\" /run"	d11668d21bfa63da5e82ba90d3b0eba0N.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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	d11668d21bfa63da5e82ba90d3b0eba0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe
Token: SeDebugPrivilege	3032	AhnSvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 3032	1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe	31
PID 1728 wrote to memory of 3032	1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe	31
PID 1728 wrote to memory of 3032	1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe	31
PID 1728 wrote to memory of 3032	1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe	31
PID 1728 wrote to memory of 2884	1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe	32
PID 1728 wrote to memory of 2884	1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe	32
PID 1728 wrote to memory of 2884	1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe	32
PID 1728 wrote to memory of 2884	1728	d11668d21bfa63da5e82ba90d3b0eba0N.exe	32

C:\Users\Admin\AppData\Local\Temp\d11668d21bfa63da5e82ba90d3b0eba0N.exe
"C:\Users\Admin\AppData\Local\Temp\d11668d21bfa63da5e82ba90d3b0eba0N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1728
- C:\ProgramData\AhnLab\AhnSvc.exe
  "C:\ProgramData\AhnLab\AhnSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\d11668d21bfa63da5e82ba90d3b0eba0N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2884

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 Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\AhnLab\AhnSvc.exe

Filesize
59KB

MD5
fbf613525aa8ad47f361159fbed34730

SHA1
bf2c1d4472d7230552e47e0fb5bfe2c1dcad1ea1

SHA256
04ef33459495ca082f5544f16ec1d16af76178a1d422c1cef593da23dadd7362

SHA512
16896c97e89bab64ff9b5593dbc6bb623f5eeb2929656fe41242a01dabe4bab438156299da5a8182e991446e0c39ca5bbd7c1c2626bfa6073fd45c09cd15f392

Download Submit
memory/1728-0-0x0000000000220000-0x0000000000247000-memory.dmp

Filesize
156KB

Download
memory/1728-9-0x0000000000070000-0x0000000000097000-memory.dmp

Filesize
156KB

Download
memory/1728-11-0x0000000000220000-0x0000000000247000-memory.dmp

Filesize
156KB

Download
memory/1728-12-0x0000000000070000-0x0000000000097000-memory.dmp

Filesize
156KB

Download
memory/1728-13-0x0000000000070000-0x0000000000097000-memory.dmp

Filesize
156KB

Download
memory/1728-22-0x0000000000220000-0x0000000000247000-memory.dmp

Filesize
156KB

Download
memory/3032-10-0x0000000001170000-0x0000000001197000-memory.dmp

Filesize
156KB

Download
memory/3032-14-0x0000000001170000-0x0000000001197000-memory.dmp

Filesize
156KB

Download
memory/3032-18-0x0000000001170000-0x0000000001197000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads