hxxps://imputeletter[.]com/0/0/0/u8d821edc2ec4c3f1248a56687fc68fbe13/263-8907/964-44559-16043

Analysis

max time kernel
145s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 10:07

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General

Target

https://imputeletter.com/0/0/0/u8d821edc2ec4c3f1248a56687fc68fbe13/263-8907/964-44559-16043

Score

1^/10

Malware Config

Signatures

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1364	msedge.exe
1364	msedge.exe
4088	msedge.exe
4088	msedge.exe
4584	identity_helper.exe
4584	identity_helper.exe
1376	msedge.exe
1376	msedge.exe
1376	msedge.exe
1376	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe
4088	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 3496	4088	msedge.exe	82
PID 4088 wrote to memory of 3496	4088	msedge.exe	82
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 3116	4088	msedge.exe	84
PID 4088 wrote to memory of 1364	4088	msedge.exe	85
PID 4088 wrote to memory of 1364	4088	msedge.exe	85
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86
PID 4088 wrote to memory of 424	4088	msedge.exe	86

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://imputeletter.com/0/0/0/u8d821edc2ec4c3f1248a56687fc68fbe13/263-8907/964-44559-16043
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:4088
- 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffa82ad46f8,0x7ffa82ad4708,0x7ffa82ad4718
  2⤵
  PID:3496
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2084,16251576674532914474,2252816888889792228,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2268 /prefetch:2
  2⤵
  PID:3116
- 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=2084,16251576674532914474,2252816888889792228,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2324 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1364
- 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=2084,16251576674532914474,2252816888889792228,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2848 /prefetch:8
  2⤵
  PID:424
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,16251576674532914474,2252816888889792228,131072 --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=3304 /prefetch:1
  2⤵
  PID:4792
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,16251576674532914474,2252816888889792228,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3296 /prefetch:1
  2⤵
  PID:2384
- 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=2084,16251576674532914474,2252816888889792228,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5092 /prefetch:8
  2⤵
  PID:1704
- 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=2084,16251576674532914474,2252816888889792228,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5092 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4584
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,16251576674532914474,2252816888889792228,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5212 /prefetch:1
  2⤵
  PID:2148
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,16251576674532914474,2252816888889792228,131072 --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=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5232 /prefetch:1
  2⤵
  PID:3360
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,16251576674532914474,2252816888889792228,131072 --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=3464 /prefetch:1
  2⤵
  PID:4252
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,16251576674532914474,2252816888889792228,131072 --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=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3372 /prefetch:1
  2⤵
  PID:4288
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2084,16251576674532914474,2252816888889792228,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2416 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1376

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2860

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2052

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
4b4f91fa1b362ba5341ecb2836438dea

SHA1
9561f5aabed742404d455da735259a2c6781fa07

SHA256
d824b742eace197ddc8b6ed5d918f390fde4b0fbf0e371b8e1f2ed40a3b6455c

SHA512
fef22217dcdd8000bc193e25129699d4b8f7a103ca4fe1613baf73ccf67090d9fbae27eb93e4bb8747455853a0a4326f2d0c38df41c8d42351cdcd4132418dac

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

Filesize
152B

MD5
eaa3db555ab5bc0cb364826204aad3f0

SHA1
a4cdfaac8de49e6e6e88b335cfeaa7c9e3c563ca

SHA256
ef7baeb1b2ab05ff3c5fbb76c2759db49294654548706c7c8e87f0cde855b86b

SHA512
e13981da51b52c15261ecabb98af32f9b920651b46b10ce0cc823c5878b22eb1420258c80deef204070d1e0bdd3a64d875ac2522e3713a3cf11657aa55aeccd4

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

Filesize
6KB

MD5
fb735649b7328ea34d8e56bbbb7a5865

SHA1
87472168552de638bbb212af11cc370fad843659

SHA256
3327f242f936498a6ab00ad59e679886508e833316aae363661fb434e16ec917

SHA512
84704c7c5a6d2ac7754ee679221b74173ada6a8e2a23f772100e22ded37c45832eed17f36a9f25659df3385a92101a85286d1d02d4172caa2e309fedc5d88a52

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

Filesize
6KB

MD5
de92194f4bd4fc23a3b83f94fc58b2f5

SHA1
6ba46dd88686cc8eb624820943aeb01db724daf1

SHA256
6d5c8b79794d602cf782994c123335c1a2557dc40e8db833954a14e976033a64

SHA512
a060328e40662a65cca45a85a9f8791269d0c000300fcdce30c66f0c05cb8203b6c3dcfebb073373a88af933f5b51ee322567f901c6733a0382ae2b733e190bf

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

Filesize
6KB

MD5
955d9d943f8dc0846eac04b355e97c7a

SHA1
edf2fb8411f15695ceaea164d21ebcea52c23a4e

SHA256
3546b3b4de872fd24468e9b8604dbfaf833fb5f81bb7ee96f3232eadcd011b10

SHA512
07586a689c5bc04f86db32a37dbde5cae50adb81d1c5311a214647cc53cb1f8ab1ff8ec3e474ccc94aba3abb07b3efda893ae90e1650bbf328e2bd8681b08e2e

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

Filesize
203B

MD5
eb61c646536cbb5f044862f4f31b9d75

SHA1
130a4f628872ad50091e6151fc11a7cf58cf1dc3

SHA256
59e45eaf788e2eff4f5d37cf701be0e25324ce9c04b25f5a7e28b72d7e807bb7

SHA512
d82c7b575524478c7a92ea77eae978c3b49570dea50b5407b713fd588e6b9d2caca41de36c8b9ec3f35502a534386c58e232868b6467a9cec611f603be11748c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\TransportSecurity~RFe57c1d9.TMP

Filesize
203B

MD5
56dfcdcf2c80170f64dfc25f1666f7ba

SHA1
78f7e153aa5805099db21aeab0a625b517232b3f

SHA256
531d42ffbc3727106fe5f1357d2d9604bc3d5a670c697b9a301343eb48dd3e1a

SHA512
83846a721fb42024d02cda0aba1a8358483675da12cab91447067f89d14939346fb7465a67d2e2fed04a3ad0f2954708b8dcf99cf0c551a2324ceba14fbc1a70

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
11KB

MD5
f558f408d9c65b516867106a9ef77da5

SHA1
cbfea5055eea5a7197a76d126a91ef52393d6037

SHA256
5d2858ac41c61bf8b85279dc0b65ca7b474130f0560074dec049c3bc841d7c0f

SHA512
bf783689f3898dc5766721e496e674536fef85284860927d3e8192f83a3be13eafef5c4354d101f06380dcef21652f3be1bf31ff69c979ec765ed3d42241a7aa

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Spelling\en-US\default.dic

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit