34d2d7da9f05a2ca511ff0aae4390bd00a0482ff6880020c3fe5d231f644883e

Resubmissions

08-09-2023 10:15

230908-l9765sae7v 1

08-09-2023 10:13

230908-l85pmaae6x 1

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2023 10:13

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General

Target

6f465395-4e59-47a7-bad9-f1e98998accf.pdf
Size

68B
MD5

44d88612fea8a8f36de82e1278abb02f
SHA1

3395856ce81f2b7382dee72602f798b642f14140
SHA256

275a021bbfb6489e54d471899f7db9d1663fc695ec2fe2a2c4538aabf651fd0f
SHA512

cc805d5fab1fd71a4ab352a9c533e65fb2d5b885518f4e565e68847223b8e6b85cb48f3afad842726d99239c9e36505c64b0dc9a061d9e507d833277ada336ab

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4272677097-406801653-1594978504-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe
4500	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 3600	4500	AcroRd32.exe	90
PID 4500 wrote to memory of 3600	4500	AcroRd32.exe	90
PID 4500 wrote to memory of 3600	4500	AcroRd32.exe	90
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 3472	3600	RdrCEF.exe	93
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94
PID 3600 wrote to memory of 1104	3600	RdrCEF.exe	94

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\6f465395-4e59-47a7-bad9-f1e98998accf.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3600
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=38B166C61C253DC9689C7B6BF2752825 --mojo-platform-channel-handle=1720 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3472
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=6EE41F262B2EF79E59153528D3709428 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=6EE41F262B2EF79E59153528D3709428 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1104
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=4038073668B8B380CCFDF4D45774FEED --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4584
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=4FE1593E234A7F54A2354785D8C3C3C5 --mojo-platform-channel-handle=1952 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:336
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=2CFC9E1AF4EC7A8E4EC483EA9C54FB5C --mojo-platform-channel-handle=2396 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2244

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
b44191107cd478260dcdfa0a3f47780e

SHA1
cd097598d86c4be38dd333b994b996ad42ff792c

SHA256
ae860e0704423f26c24dc3f988a6b378466d3928756a0e691570086db2add490

SHA512
2c87bc0e72e4e735d5a0b8f6d2ccf637d560fbd42294e98b72ab21e6c214fe2d1cabd9b20a92088dd2a1864ac70a95f978bb4bca1436c914070422ab605467ab

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit