ff320cb28d20844a224c2d537341bb99e80a08ac11c783eee8b1115ad659ab1c

Analysis

max time kernel
134s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2024, 02:29

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General

Target
Benefits & Compensation Letter For Skgcs Ops_GTDEFPPKILJROOT.pdf
Size 29KB
Sample240701-cykr2axakj
SHA256 ff320cb28d20844a224c2d537341bb99e80a08ac11c783eee8b1115ad659ab1c
MD5 b603adccb7e31a4941c456a8f4f9ab3a
SHA1 1bfb0faf333b3ae1f3f4af68b71621a47a4f483a
SHA512 bfff40882efda50e6fbac035f6a171da3da49d91c8c9fc7ef57c4652261c1180b340b2c0a273b50ad8352c18bedd9d8ab86dcade87e38036ad419c18718927c7
SSDEEP 768:Bs97XcbPttWmGN++w7w8OsuDC8WRKrQlsq3Dl5ZD:B+XpS7w8z6Wg0SIDrZD
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 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-1-5-21-2080292272-204036150-2159171770-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4548	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4548 wrote to memory of 1884	4548	AcroRd32.exe	88
PID 4548 wrote to memory of 1884	4548	AcroRd32.exe	88
PID 4548 wrote to memory of 1884	4548	AcroRd32.exe	88
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 3144	1884	RdrCEF.exe	89
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90
PID 1884 wrote to memory of 4384	1884	RdrCEF.exe	90

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\Benefits & Compensation Letter For Skgcs Ops_GTDEFPPKILJROOT.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:4548
- 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:1884
- - 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=7EE434B0C263E345083CB1CDF72FF7FA --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3144
- - 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=0290840FD4BCF6409BBEA9823A275CEF --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=0290840FD4BCF6409BBEA9823A275CEF --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4384
- - 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=A3C9F049007918186FDF5CF88C9CAA40 --mojo-platform-channel-handle=1808 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4816
- - 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=E3178723DCED99D1A0D08F2469B45EC4 --mojo-platform-channel-handle=2388 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2684
- - 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=C34F5D410B7FAB08A1412507D5369E4E --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=C34F5D410B7FAB08A1412507D5369E4E --renderer-client-id=6 --mojo-platform-channel-handle=1868 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1100
- - 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=F7B069160A15ABAF878C9091DE2406AD --mojo-platform-channel-handle=1624 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1728

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3472

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 792f8a72f349c4d883be89db4764e2ba522a0684fab94fad5ca80e2df277d2bc
MD5 d7a8c5108992e7fbb8ea7eaf0c5773b8
SHA1 14dd44a42dc04cb0ed7642f045339b834fd4b3ac
SHA512 a0dac1f5d2fcbbe6232306da644541fff4dbe9b4c70318986a99d1ddec11d7b04beff454fadac7e43c249474c8b8526aa7d6315495d9509deb0010801d999dd3
SSDEEP 384:yeRdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:Q+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/4548-121-0x000000000B9B0000-0x000000000BC5B000-memory.dmp

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