30ec8a71f9c5e303be353c877db015b733173281d81f7278b933bc5b4c956d73

General

Target

2263d9661087c367cb757a58c0c505df.exe
Size

211KB
MD5

2263d9661087c367cb757a58c0c505df
SHA1

1ef5c1b3c3f95bd79657ebc0d6b9a3d602c7604b
SHA256

30ec8a71f9c5e303be353c877db015b733173281d81f7278b933bc5b4c956d73
SHA512

aa6c1abb9a7abed003b97cc90c8feadd706a5bde58a573d51af7deff07e8c6acd0b6be940f4d6306aafc7d808fe505447c5f896981fa990164a171b5d6d9a94e
SSDEEP

1536:M6qxQui3mTjqsuc9TGl0hwpWbdCwprWhVHh+Nk:0PzARp0dCwS+Nk

Score

10^/10

evasion upx

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	dwm.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	dwm.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	dwm.exe

Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2263d9661087c367cb757a58c0c505df.exe

Executes dropped EXE 2 IoCs

pid	Process
1732	dwm.exe
2992	dwm.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4488-0-0x0000000000400000-0x0000000000432000-memory.dmp	upx
behavioral2/files/0x00070000000231f4-5.dat	upx
behavioral2/memory/1732-13-0x0000000000400000-0x0000000000432000-memory.dmp	upx
behavioral2/memory/1732-10-0x0000000000400000-0x0000000000432000-memory.dmp	upx
behavioral2/memory/4488-9-0x0000000000400000-0x0000000000432000-memory.dmp	upx
behavioral2/memory/2992-14-0x0000000000400000-0x0000000000432000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\dwm.exe	2263d9661087c367cb757a58c0c505df.exe
File opened for modification	C:\Windows\system\dwm.exe	2263d9661087c367cb757a58c0c505df.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
316	sc.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	dwm.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	dwm.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	dwm.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	dwm.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	dwm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4488	2263d9661087c367cb757a58c0c505df.exe
4488	2263d9661087c367cb757a58c0c505df.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 316	4488	2263d9661087c367cb757a58c0c505df.exe	20
PID 4488 wrote to memory of 316	4488	2263d9661087c367cb757a58c0c505df.exe	20
PID 4488 wrote to memory of 316	4488	2263d9661087c367cb757a58c0c505df.exe	20
PID 4488 wrote to memory of 1732	4488	2263d9661087c367cb757a58c0c505df.exe	46
PID 4488 wrote to memory of 1732	4488	2263d9661087c367cb757a58c0c505df.exe	46
PID 4488 wrote to memory of 1732	4488	2263d9661087c367cb757a58c0c505df.exe	46

C:\Users\Admin\AppData\Local\Temp\2263d9661087c367cb757a58c0c505df.exe
"C:\Users\Admin\AppData\Local\Temp\2263d9661087c367cb757a58c0c505df.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4488
- C:\Windows\SysWOW64\sc.exe
  sc delete darkness
  2⤵
  - Launches sc.exe
  PID:316
- C:\Windows\system\dwm.exe
  "C:\Windows\system\dwm.exe" /start
  2⤵
  - Executes dropped EXE
  PID:1732

C:\Windows\system\dwm.exe
C:\Windows\system\dwm.exe
1⤵
- Modifies firewall policy service
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1

T1489

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Downloads

C:\Windows\System\dwm.exe

Filesize
92KB

MD5
7ac856cb52a6371db2e52971943fba53

SHA1
8a9734db64a517794ce8c6fa778e41199b16cdb7

SHA256
d06d611a3dc1d3998fc485652e2ad86813d6154f4b84d18b6602fcad3699c9ec

SHA512
a20a0ec285b93c9eac5774e841f6c17f8908e4fe543dff6a38bb18d7e391b3c3f09ddded2af65400bbcbc96acb1b30ea01a2b6aa53af95a8c0f3de81d00fb112

Download Submit
memory/1732-13-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1732-10-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2992-14-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4488-0-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4488-9-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads