3f0e07fc6345cc179b7571de8b9fb2bfee2f9bef92a4ec224b4e034cd49e697f

General

Target

InstallerAPI.pdf
Size

102.1MB
MD5

db0521bd7e4b9fc803f9a900212eea02
SHA1

6c86b49b4c1e3ebcecd5376166bfe3bda6a141fa
SHA256

e95ce4146e3ffe7d5fde36340c01889f7634d6f91b92fbae1606bef9cb4a7cfb
SHA512

22d219dac43bd3200e666ef7e554584b0fd43c57c0a6dd7888dc80f71a9b5e73ba48400607205a4f1680af0ccaa197fdb1add05fc7f698e9246fe00a6a49080f
SSDEEP

3145728:96lH+byk0ZggBznCh2HCea5bQ92NmDVr9XqnZGWpg:M

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-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

AcroRd32.exe

pid	process
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

4752 AcroRd32.exe
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

AcroRd32.exe

pid process

4752 AcroRd32.exe
4752 AcroRd32.exe
4752 AcroRd32.exe
4752 AcroRd32.exe
4752 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 4752 wrote to memory of 4976	4752	AcroRd32.exe	RdrCEF.exe
PID 4752 wrote to memory of 4976	4752	AcroRd32.exe	RdrCEF.exe
PID 4752 wrote to memory of 4976	4752	AcroRd32.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 692	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	RdrCEF.exe	RdrCEF.exe
PID 4976 wrote to memory of 1236	4976	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\InstallerAPI.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:4752

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:4976

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=4238A1C280F41E3940C93F0423672295 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:692

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=3BB06CDE0894557AFEF45214C0C97CBE --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=3BB06CDE0894557AFEF45214C0C97CBE --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
3⤵
PID:1236

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=9FB6E2706DA30BF940EA0A821282ED33 --mojo-platform-channel-handle=2156 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1880

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=2D8B5EDFA48F40724A8170093804C52D --mojo-platform-channel-handle=1624 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4928

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=4A09C78D2FB296544BAE4959D2E15418 --mojo-platform-channel-handle=2192 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1800

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=F49BE8D38D47DB284C295D1561C53AE8 --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=F49BE8D38D47DB284C295D1561C53AE8 --renderer-client-id=7 --mojo-platform-channel-handle=2564 --allow-no-sandbox-job /prefetch:1
3⤵
PID:464

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:5060

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
64KB

MD5
4280c3d1cab26300af9e2976550041b6

SHA1
70ca5bf0dc2cf44b3725272ca8ebf754ddd165ea

SHA256
f309481afd2c2743ed08e3e2b1a1f2ea9e76efbc764985f2d2e2d404d3542e19

SHA512
a2e05516b4b1800ccf576d4521df06840fbe255c53c79ce60e4394f17c2c237e4f3f9398ac1143fc79808e1799dad9f1d20d2d97405ae3fcfa189963829bb60a

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads