a17b4a83e36a02f22d64cff10a32ddfa4756ad44334fa72079f6a11342b71e1b

General

Target

Maryann 2023 Tax Organizer/1099Misc.pdf
Size

130.0MB
MD5

f158d3387c6e2cb1b482f7b7abee7e20
SHA1

9aadedb8049339dd027a45bc733caa1f6f3dc7a9
SHA256

c052369f476b624913e8aec1a3ba729d30b5d5f145c4c5c58d64f7d09cfa54b5
SHA512

93e92533c93d966007eaf6fb35772e362326eb8bd321f1db28cfa98943277589a393081157a8832f162776127eb91974e3f93a2ea3475e936db1f228973bc40e
SSDEEP

3145728:96lH+byk0ZggBznCh2HCea5bQ92NmDVr9XqnZGWp:

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

Processes:

AcroRd32.exe

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

Processes:

AcroRd32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

AcroRd32.exe

pid	process
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe
2380	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

2380 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

2380 AcroRd32.exe
2380 AcroRd32.exe
2380 AcroRd32.exe
2380 AcroRd32.exe
2380 AcroRd32.exe
2380 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 2380 wrote to memory of 4024	2380	AcroRd32.exe	RdrCEF.exe
PID 2380 wrote to memory of 4024	2380	AcroRd32.exe	RdrCEF.exe
PID 2380 wrote to memory of 4024	2380	AcroRd32.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 3756	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe
PID 4024 wrote to memory of 1652	4024	RdrCEF.exe	RdrCEF.exe

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\Maryann 2023 Tax Organizer\1099Misc.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:2380

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:4024

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=2505ED8EADDFD76FA00E114EDA1E7CF0 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:3756

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=62589BC611630E56D2F0C8E010D2C9BB --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=62589BC611630E56D2F0C8E010D2C9BB --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
3⤵
PID:1652

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=7F6EBE554C9069C78D8CC3218DA1E412 --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=7F6EBE554C9069C78D8CC3218DA1E412 --renderer-client-id=4 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job /prefetch:1
3⤵
PID:3332

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=485A481C7E6A56BB95E7619C0544456E --mojo-platform-channel-handle=2568 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1164

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=0842224281DE4CFCF4F63BE2A0EBF8D8 --mojo-platform-channel-handle=1932 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:532

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=7C1ED8369E73031A7F56FD48A3A10F8C --mojo-platform-channel-handle=2188 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4264

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads