bab1853454ca6fdd3acd471254101db1b805b601e309a49ec7b4b1fbcfc47ad7

Resubmissions

21-02-2024 14:33

240221-rw8hmsha2y 10

21-02-2024 14:31

240221-rvtm4agh7w 10

21-02-2024 11:52

240221-n1xedseg6t 10

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
21-02-2024 14:31

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General

Target

cryptowall.exe
Size

240KB
MD5

47363b94cee907e2b8926c1be61150c7
SHA1

ca963033b9a285b8cd0044df38146a932c838071
SHA256

45317968759d3e37282ceb75149f627d648534c5b4685f6da3966d8f6fca662d
SHA512

93dfaafc183360829448887a112dd49c90ec5fe50dcd7c7bbc06c1c8daa206eeea5577f726d906446322c731d0520e93700d5ff9cefd730fba347c72b7325068
SSDEEP

3072:xkeyloECBch6ZCGBGSmHJ0y5lj6jdojK7+MGOXpXx8z3Lp7Yoq:xGlnCIwMpj6ijKfxx8z3F0V

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3124 3572 WerFault.exe cryptowall.exe

pid	pid_target	process	target process
3124	3572	WerFault.exe	cryptowall.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

msedge.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

msedge.exemsedge.exeidentity_helper.exe

pid process

2144 msedge.exe
2144 msedge.exe
2300 msedge.exe
2300 msedge.exe
4260 identity_helper.exe
4260 identity_helper.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

Processes:

msedge.exe

pid process

2300 msedge.exe
2300 msedge.exe
2300 msedge.exe
2300 msedge.exe
2300 msedge.exe
2300 msedge.exe
2300 msedge.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cryptowall.exe

description pid process

Token: 33 3572 cryptowall.exe
Token: SeIncBasePriorityPrivilege 3572 cryptowall.exe

pid	process
2144	msedge.exe
2144	msedge.exe
2300	msedge.exe
2300	msedge.exe
4260	identity_helper.exe
4260	identity_helper.exe

description	pid	process
Token: 33	3572	cryptowall.exe
Token: SeIncBasePriorityPrivilege	3572	cryptowall.exe

Suspicious use of FindShellTrayWindow 26 IoCs

Processes:

msedge.exe

pid	process
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

Processes:

msedge.exe

pid	process
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe
2300	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

msedge.exe

description	pid	process	target process
PID 2300 wrote to memory of 3896	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 3896	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 5052	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 2144	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 2144	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe
PID 2300 wrote to memory of 4996	2300	msedge.exe	msedge.exe

C:\Users\Admin\AppData\Local\Temp\cryptowall.exe
"C:\Users\Admin\AppData\Local\Temp\cryptowall.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 476
  2⤵
  - Program crash
  PID:3124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3572 -ip 3572
1⤵
PID:3540

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --profile-directory=Default
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x11c,0x120,0x124,0xf8,0x128,0x7ffe0f5346f8,0x7ffe0f534708,0x7ffe0f534718
  2⤵
  PID:3896
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2176 /prefetch:2
  2⤵
  PID:5052
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2372 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2144
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2640 /prefetch:8
  2⤵
  PID:4996
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3440 /prefetch:1
  2⤵
  PID:3644
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3456 /prefetch:1
  2⤵
  PID:2636
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4536 /prefetch:1
  2⤵
  PID:2548
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3768 /prefetch:1
  2⤵
  PID:4048
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3640 /prefetch:1
  2⤵
  PID:4536
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3868 /prefetch:1
  2⤵
  PID:1256
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4628 /prefetch:1
  2⤵
  PID:1636
- C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4820 /prefetch:8
  2⤵
  PID:1724
- C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2148,14068403161832008428,1263124737037490356,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4820 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4260

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1128

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
1af9fbc1d4655baf2df9e8948103d616

SHA1
c58d5c208d0d5aab5b6979b64102b0086799b0bf

SHA256
e83daa7b2af963dbb884d82919710164e2337f0f9f5e5c56ee4b7129d160c135

SHA512
714d0ff527a8a24ec5d32a0a2b74e402ee933ea86e42d3e2fb5615c8345e6c09aa1c2ddf2dea53d71c5a666483a3b494b894326fea0cc1d8a06d3b32ec9397d3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
aa6f46176fbc19ccf3e361dc1135ece0

SHA1
cb1f8c693b88331e9513b77efe47be9e43c43b12

SHA256
2f5ba493c7c4192e9310cea3a96cfec4fd14c6285af6e3659627ab177e560819

SHA512
5d26fdffebeb1eb5adde9f7da19fe7069e364d3f68670013cb0cc3e2b40bf1fbcb9bdebbfe999747caf141c88ccd53bd4acf2074283e4bde46b8c28fbae296f5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
6KB

MD5
dbc757eeb24cf476c4b4a0dc21538729

SHA1
9e152c763accfe45d68db1aea5c9123f97bb5f75

SHA256
2ed633d96063b3087bf684930ba75d201dabfd9145242f326ed94dcafcc84457

SHA512
fd942bebb6a4d063bb90ef0de99fc640b206ba9e0db14266b3a532f17c502fc19f0830be5f4c23db8e0f58d7786333d1151024f1684dfaa872009347742d2adf

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
6KB

MD5
cf5dcae2a37f64e77fc5f840247afb3d

SHA1
4ab15ee31cecbb2f0068366c1f11b8e44065a47f

SHA256
648531e20d3ffcc767d4e725376e0ef97169fb2e55487c49cc3f65f92bb2254a

SHA512
6e2131dbdcc694e8dece343534b380c7bf6236ed6c62a77ecda496b8e40752640edcf4091964d39fce4b234606ce9e7912b42ae87ed73dd3b86226d9165534dd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

Filesize
16B

MD5
6752a1d65b201c13b62ea44016eb221f

SHA1
58ecf154d01a62233ed7fb494ace3c3d4ffce08b

SHA256
0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

SHA512
9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

Filesize
9KB

MD5
4d48cd1baa3514b044ed1ca75edba350

SHA1
c4cdae1c5c7a233e622c7c583740c5bad76b5c60

SHA256
3a700e7ceaa07686b3a572a205c2c27b80f2a41fb15e634ed6a8e9476680cb81

SHA512
e90897ac166c8676f877d4b2a5be6858f77b86f76dbf3f2d6d5b5ef024937a1aa1eb14540651f54f23106c8657fe5bf082bee7af10d3aac5c13d39584e13c8bd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\ShaderCache\GPUCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit
\??\pipe\LOCAL\crashpad_2300_KELJBOMLVCSWCDDI

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit