c79ac8a613c7a25793b2a0167d48a6a5e8e7c811ccdaf01d0a47efc7dff99dbd

Analysis

max time kernel
102s
max time network
20s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
15-08-2024 09:26

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General

Target

.reloc
Size

2KB
MD5

0997c172bb70dafb06dd0d5f220b8ef6
SHA1

b101e5b21ca18127584725fc3d875e1e31f260bf
SHA256

df1ae66a3d747156c00913596a4313eb8814fb627b21c424d3cb8baa257e27db
SHA512

a92d3ab2db442ff0a0c8c87ca2ac21dbac34bd355807a107942fcd02c4e8bf2a4e4746dd743033f3d16be797bc9a8b5a5d9380c83361435482e41af2336c4e02

Score

3^/10

discovery

Malware Config

Signatures

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 1 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

Processes:

AcroRd32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\reloc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\.reloc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\.reloc\ = "reloc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\reloc_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\reloc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\reloc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\reloc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\reloc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2856 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2856 AcroRd32.exe
2856 AcroRd32.exe

pid	process
2856	AcroRd32.exe

pid	process
2856	AcroRd32.exe
2856	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1976 wrote to memory of 2788	1976	cmd.exe	rundll32.exe
PID 1976 wrote to memory of 2788	1976	cmd.exe	rundll32.exe
PID 1976 wrote to memory of 2788	1976	cmd.exe	rundll32.exe
PID 2788 wrote to memory of 2856	2788	rundll32.exe	AcroRd32.exe
PID 2788 wrote to memory of 2856	2788	rundll32.exe	AcroRd32.exe
PID 2788 wrote to memory of 2856	2788	rundll32.exe	AcroRd32.exe
PID 2788 wrote to memory of 2856	2788	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\.reloc
1⤵
- Suspicious use of WriteProcessMemory
PID:1976

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\.reloc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2788

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\.reloc"
3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2856

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
5abab5c7ef1877fc90109ea2eb20a9be

SHA1
1b9bb78ec5d15d7e431339934f1150ac7d43b4f9

SHA256
805c0574445a2587e66b2acf83cfa6cdad409d82a5bde4f686b4a127ed53b736

SHA512
e710d6ee6c3f4beef8ffb590b21f414cb3c41b6aeaa9a9ee2a6a09e7a3d29e2353573cf7269b607dba1329f3fee8624c2b81e798814efcd86d6c9b4ee5f7973d

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