8d1838e41d3a0ad052e2d4092face3eb9ce6669a18df48acf8cbc7b09aac6efe

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18-01-2024 17:44

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General

Target

65a41664b4f35b956910e62ce0aa459d.pdf
Size

87KB
MD5

65a41664b4f35b956910e62ce0aa459d
SHA1

8652e8f35ab956363b6e5708ab03c90036e2675d
SHA256

8d1838e41d3a0ad052e2d4092face3eb9ce6669a18df48acf8cbc7b09aac6efe
SHA512

63bf4405b339f615121abd08a9615707b506c02ce6bd63e0453b5ba87a8325c80fae83207efdc05c28985a3afb5322f145447284b9e9eddc3a962065fa1ebec7
SSDEEP

1536:Vq1ird39TlWOhYhxSQNH5acAk3gvlAprsUgvt641+4FF7i1bxUpFnLPeqFiD:c1a5lW0YJ5BAku29sUqtt5F+bxUHLPxg

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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4188	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe
4188	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4188 wrote to memory of 4908	4188	AcroRd32.exe	95
PID 4188 wrote to memory of 4908	4188	AcroRd32.exe	95
PID 4188 wrote to memory of 4908	4188	AcroRd32.exe	95
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 3260	4908	RdrCEF.exe	97
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98
PID 4908 wrote to memory of 1076	4908	RdrCEF.exe	98

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\65a41664b4f35b956910e62ce0aa459d.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4188
- 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:4908
- - 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=2814769B4A317665FAE56043F74B962D --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3260
- - 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=958D37AF826F7B94F1E19C65339C0D83 --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=958D37AF826F7B94F1E19C65339C0D83 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1076
- - 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=61FA97C695243F12504A31DCAC07E73B --mojo-platform-channel-handle=2168 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1944
- - 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=12E3176BBFF0B1A32B88968FF2F86E26 --mojo-platform-channel-handle=1904 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3692
- - 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=C3ED92E9F057FCCF1F653EDCFDEFB3F5 --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=C3ED92E9F057FCCF1F653EDCFDEFB3F5 --renderer-client-id=6 --mojo-platform-channel-handle=2376 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4456
- - 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=9ABF1D91F153C0F064E0A38B28F92FF1 --mojo-platform-channel-handle=2228 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:520

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2512

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
3b3133acedfa467c5a71d25525593586

SHA1
16e0bd487e14792a425b3b3ddde4b7699054060c

SHA256
a8d8ee1c3039d05a2ce12673ef98a7ef37689682136ba9b16095c916afd477bf

SHA512
cd3d391dd404b084c636336f76d461e14826289a887aec3fbb01ae538c1c134f83827709a51e0e9b9839580f53fb7de0f92c3b99c7f3edebc120293eeeb1ee7a

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
memory/4188-24-0x000000000B350000-0x000000000B3A0000-memory.dmp

Filesize
320KB

Download