83fb7388f24a38256f4096c1a766c33d0d0e5e8bb4c5981fd1b376fba9f2da66

Analysis

max time kernel
140s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 23:50

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General

Target

83fb7388f24a38256f4096c1a766c33d0d0e5e8bb4c5981fd1b376fba9f2da66.dll
Size

76KB
MD5

747627c5c0b1f4183ac32d07fcde577a
SHA1

9e99534e9039875497c4d2dceae4ede9e84f022f
SHA256

83fb7388f24a38256f4096c1a766c33d0d0e5e8bb4c5981fd1b376fba9f2da66
SHA512

f98a6b728becc24e8278f65966184f0741045313c667eb7ba4593c8dbec3db104194464ab8016be3c5d7a5d7ee378c231770086231b02d925c9e8d5c8bb13e1a
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZgLBi:c8y93KQjy7G55riF1cMo034Bi

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3272-0-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral2/memory/3272-1-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral2/memory/3272-2-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3272-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3272-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3272-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1844 3272 WerFault.exe rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 3272 rundll32.exe

pid	pid_target	process	target process
1844	3272	WerFault.exe	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	3272	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4972 wrote to memory of 3272	4972	rundll32.exe	rundll32.exe
PID 4972 wrote to memory of 3272	4972	rundll32.exe	rundll32.exe
PID 4972 wrote to memory of 3272	4972	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\83fb7388f24a38256f4096c1a766c33d0d0e5e8bb4c5981fd1b376fba9f2da66.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4972

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\83fb7388f24a38256f4096c1a766c33d0d0e5e8bb4c5981fd1b376fba9f2da66.dll,#1
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 668
3⤵
- Program crash
PID:1844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3272 -ip 3272
1⤵
PID:4884

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4140 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:5040

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

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3272-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3272-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3272-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download