0f931ef68b73d54c7badb15ce19ffe79a9ebb6489ecf86a808cd57b3874404d2

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
11-06-2024 18:31

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General

Target

_locales/be/messages.json
Size

45KB
MD5

eaa22b0fdf9efa55d9dd00e976400aeb
SHA1

f29f1eefeddbfb7954de0d3fce96cd19b7980c5f
SHA256

6a87274b02dab119cc5ef421f70641c5bbd688982593990158abfbddc1085da5
SHA512

4aab4d83baa8c1ef3c0149071d66ddc3b016470de43db5379c45c4ea7cf2e51412f42669d3db2d0aa2917b7a928ce47934ef7cd4d6b4f3a024fb33c47ff035ef
SSDEEP

384:4sM/CvV5qynWmmCSHkfwjXWo56DHLCKjp0+lUWFM2qUV4OrwP9E+2Kjx3NvSpH34:6DmmCSwfVMCMN5Pms7vLLIYiyijlHy

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

1972 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

1972 AcroRd32.exe
1972 AcroRd32.exe

pid	process
1972	AcroRd32.exe

pid	process
1972	AcroRd32.exe
1972	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2256 wrote to memory of 2576	2256	cmd.exe	rundll32.exe
PID 2256 wrote to memory of 2576	2256	cmd.exe	rundll32.exe
PID 2256 wrote to memory of 2576	2256	cmd.exe	rundll32.exe
PID 2576 wrote to memory of 1972	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 1972	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 1972	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 1972	2576	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\_locales\be\messages.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2256

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\_locales\be\messages.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2576

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\_locales\be\messages.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1972

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

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

MD5
58644fab091aebbdb22c2c2251545160

SHA1
63cf1276a9f64ff57f9c20790d66ca440bed46db

SHA256
99129365431b024025d43fce2eb533a1c3955aa73ea64b15dd4c9eefbd5d5de9

SHA512
dc9b2cf034f56667485d2393851f5ce8f4cee47d3ff3e6d13f41812e2c2ab50ffee45df2f5ab4c1a7358c4501365d5a219060d1ffa4c8924a1acceba4de0a250

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