8435a1c09bc16255c92d36bf708fcf9bc18c58abf0d6bc337e7a918b07e5a0f1

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
09/01/2024, 15:42

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General

Target
4eb2c30915bd49ec8af4eafb34282fe7.pdf
Size 87KB
Sample240109-s5n12adden
SHA256 8435a1c09bc16255c92d36bf708fcf9bc18c58abf0d6bc337e7a918b07e5a0f1
MD5 4eb2c30915bd49ec8af4eafb34282fe7
SHA1 5aeb96de101a9f3194fa83a52b41ce821ba062eb
SHA512 367228f976659a418e34c3e58cc25d883286641a531ad3f7e22004acc2c4af144a2536deca4b4bce508288b39113705443f45042336a8946e544e6a356e03736
SSDEEP 1536:yFetvRAW88T6srosSpl6u5tQhL554SAAVMWxhi9BvQ2Ij8XfGW8pO+jVwN:IEJAWzpMl6u4L554jUqQ2PXfB+Y
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2680	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe
2680	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 2940	2680	AcroRd32.exe	91
PID 2680 wrote to memory of 2940	2680	AcroRd32.exe	91
PID 2680 wrote to memory of 2940	2680	AcroRd32.exe	91
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4684	2940	RdrCEF.exe	92
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93
PID 2940 wrote to memory of 4216	2940	RdrCEF.exe	93

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\4eb2c30915bd49ec8af4eafb34282fe7.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:2680
- 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:2940
- - 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=0C1C7FB8C95E9E22A1BB42E74C1A16BA --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4684
- - 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=9F749BB19DCFB52BC8E03A00350AA0CC --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=9F749BB19DCFB52BC8E03A00350AA0CC --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4216
- - 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=1C4E117821B6B1541FACB7E3DA535DD6 --mojo-platform-channel-handle=2156 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3168
- - 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=E2C83BA463B4A66CCD38621C61FDFFB6 --mojo-platform-channel-handle=2412 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4864
- - 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=3345EF634EA5D6C3088006AB0727EE88 --mojo-platform-channel-handle=1820 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1028
- - 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=AB494DE91A9298C00F5F1C712A6502CB --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=AB494DE91A9298C00F5F1C712A6502CB --renderer-client-id=7 --mojo-platform-channel-handle=2532 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4208

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1232

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

ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 64KB
SHA256 904f3d8658b3ca778332cd8b3fe9476d513bc3897cebd2ba7ca9b61daa57e4a0
MD5 b40fa03e7d319c52b88f3dfafe93ce80
SHA1 ba2df12664cfdc7e2dfa29d5820789a8d93fd0c0
SHA512 0b3f4581dea7a61fcbcbd75265cfb92c8a2e9e5dc366773e6cc4f64527e28d2a3d07f9275f6cc8f45abd11590cb0b814339d869ec4e1e38181d6c5ff892b3ab0
SSDEEP 384:yeAdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:r+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 36KB
SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
MD5 b30d3becc8731792523d599d949e63f5
SHA1 19350257e42d7aee17fb3bf139a9d3adb330fad4
SHA512 523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
SSDEEP 24:TLiXlzkrFsgIFsxX3pALXmnHpkDGjmcxBSkomXk+2m9RFTsyg+wmf9Mzm+Zs3tGl:TqlmFTIF3XmHjBoGGR+jMz+LhT
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 56KB
SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
MD5 752a1f26b18748311b691c7d8fc20633
SHA1 c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA512 a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
SSDEEP 192:wedRBvVrThe4p4/KhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:weZdThkKhBvkZsLRGlzh+vS9
MD5 SHA1 SHA512 SSDEEP

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memory/2680-28-0x000000000C000000-0x000000000C021000-memory.dmp

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