48ddf7dff79ea60daf404c21840c3b0ff1c31bd95111c70887440f6fda9dd5ef

Analysis

max time kernel
141s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 00:27

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General

Target
KTNE - Manual en Español.pdf
Size 1.6MB
Sample240223-ar1tkahd44
SHA256 f70833d991a9c6167226599ec36fd411e871fd2b54661eb7df9b1f9a4d2b3c43
MD5 73de1aa61cf2fb747d638e94369329d8
SHA1 d822c3e129d6a1c1f341c9e9ca4cb0b5f4a33aa2
SHA512 47620f450f22862c93e97d188f9af838c84aac5616598a4957f75cab82180aa217c249f4d6a7a0b6a0a40bbdd269cf46f79df5dc01e8a649af0cf934bf668dca
SSDEEP 24576:60ptrFPb8zpBRIN0EcvmOJn80XlmxLC+QvaW7vLqHDsKAPMZDTNV6bPe8Z:60ptrFT8zVIuEcvHJn80XlmlCtQATF
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-1-5-21-3316742141-2240921845-2885234760-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
676	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe
676	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 676 wrote to memory of 4892	676	AcroRd32.exe	91
PID 676 wrote to memory of 4892	676	AcroRd32.exe	91
PID 676 wrote to memory of 4892	676	AcroRd32.exe	91
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 2520	4892	RdrCEF.exe	92
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	RdrCEF.exe	93
PID 4892 wrote to memory of 1596	4892	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\KTNE - Manual en Español.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:676
- 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:4892
- - 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=04C130E4DC446D9BAB950CD9B743E320 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2520
- - 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=540523201652E83AEE61AB7EC4EBE7B1 --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=540523201652E83AEE61AB7EC4EBE7B1 --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1596
- - 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=3CE31EE4E86DC42AD51EC6CE16471BEF --mojo-platform-channel-handle=2316 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4192
- - 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=6761A3F2936BBAC260CAB55DA16538C6 --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=6761A3F2936BBAC260CAB55DA16538C6 --renderer-client-id=5 --mojo-platform-channel-handle=1844 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1592
- - 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=42D0745B6C1A035BD869EC409A4DC81C --mojo-platform-channel-handle=2672 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2984
- - 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=42875E46FDCFD0654CE8BE3E3EDDA2C3 --mojo-platform-channel-handle=1980 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4944

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2736

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 54c751effde901aa7dfbcdf9d33dc10183235b2ec3343ce042fefbb91b161497
MD5 18ba162fe5d367df0e29bd97b78b8de6
SHA1 b724060b25e47240e3d78466cdd73f539cf764e8
SHA512 f9cdf923e04b427eede590b5b8e29a358dad47b62d76241e0f4fb1c936a5b9d8d8e3e61406ad679871da2bff59e77f629ab9411a4ea94e02eff4bc40e3f9198a
SSDEEP 384:yeDdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:e+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/676-129-0x000000000EF20000-0x000000000F1CB000-memory.dmp

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