aec7d3254663753493cc816f6064fd39c6eaa477e9fe1af715480c4c2aee8112

Analysis

max time kernel
0s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/01/2024, 03:20

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General

Target

55589f0ba31caeb1506b805768840749.exe
Size

1.5MB
MD5

55589f0ba31caeb1506b805768840749
SHA1

be7a0fa20dec57b9b94efb533e23a513547e3981
SHA256

aec7d3254663753493cc816f6064fd39c6eaa477e9fe1af715480c4c2aee8112
SHA512

a6484eeb0eeadd1e16f1ddd33e130f7a8194da2a68236d6178f5bb404fdc45b2e2fc6c615e045d10c013d9d9a745beebc1cfe70d78b3c9724d397849cbe47078
SSDEEP

49152:68Gl0svU8HLuBX2sdu7c/WJdHhZZ39MT4Xq:68Y0svHLuBX2SuY/WJ5t3924Xq

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2708	dnt-firstlook-sntb.exe

Loads dropped DLL 3 IoCs

pid	Process
712	55589f0ba31caeb1506b805768840749.exe
712	55589f0ba31caeb1506b805768840749.exe
712	55589f0ba31caeb1506b805768840749.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

NSIS installer 4 IoCs

installer

resource	yara_rule
behavioral2/files/0x00060000000231e8-16.dat	nsis_installer_1
behavioral2/files/0x00060000000231e8-16.dat	nsis_installer_2
behavioral2/files/0x00060000000231e8-15.dat	nsis_installer_1
behavioral2/files/0x00060000000231e8-15.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 712 wrote to memory of 2708	712	55589f0ba31caeb1506b805768840749.exe	30
PID 712 wrote to memory of 2708	712	55589f0ba31caeb1506b805768840749.exe	30
PID 712 wrote to memory of 2708	712	55589f0ba31caeb1506b805768840749.exe	30

C:\Users\Admin\AppData\Local\Temp\55589f0ba31caeb1506b805768840749.exe
"C:\Users\Admin\AppData\Local\Temp\55589f0ba31caeb1506b805768840749.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:712
- C:\Users\Admin\AppData\Local\Temp\dnt-firstlook-sntb.exe
  "dnt-firstlook-sntb.exe" /RETURNSTATUS /CHANNEL=US728 /TOOLBAR /DEFAULTSEARCH /DEFAULTSTART
  2⤵
  PID:3348
- - C:\Program Files (x86)\StartNow Toolbar\ToolbarUpdaterService.exe
    "C:\Program Files (x86)\StartNow Toolbar\ToolbarUpdaterService.exe" --install
    3⤵
    PID:4908
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /i /s "C:\Program Files (x86)\StartNow Toolbar\Toolbar32.dll"
    3⤵
    PID:3372
- - C:\Program Files (x86)\StartNow Toolbar\ToolbarUpdaterService.exe
    "C:\Program Files (x86)\StartNow Toolbar\ToolbarUpdaterService.exe" --start
    3⤵
    PID:3320
- C:\Users\Admin\AppData\Local\Temp\dnt-firstlook-sntb.exe
  "dnt-firstlook-sntb.exe" /CHANNEL=US728 /OFFERED /TOOLBAR /DEFAULTSTART /DEFAULTSEARCH
  2⤵
  - Executes dropped EXE
  PID:2708
- C:\Users\Admin\AppData\Local\Temp\ispassistant-bho-setup.exe
  "ispassistant-bho-setup.exe" -d 5
  2⤵
  PID:2864
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://pornclips69.com/?tmp=adultvideo
  2⤵
  PID:1548
- - 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=2088,1692252165987313232,13828104143955945310,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2844 /prefetch:8
    3⤵
    PID:2248
- - 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=2088,1692252165987313232,13828104143955945310,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2420 /prefetch:3
    3⤵
    PID:3672
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --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=3332 /prefetch:1
    3⤵
    PID:556
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --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=3316 /prefetch:1
    3⤵
    PID:2932
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --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=4076 /prefetch:1
    3⤵
    PID:2364
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2096 /prefetch:2
    3⤵
    PID:1264
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --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=5088 /prefetch:1
    3⤵
    PID:1040
- - 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=2088,1692252165987313232,13828104143955945310,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4100 /prefetch:8
    3⤵
    PID:4024
- - 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=2088,1692252165987313232,13828104143955945310,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4100 /prefetch:8
    3⤵
    PID:4660
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --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=5436 /prefetch:1
    3⤵
    PID:3576
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --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=5416 /prefetch:1
    3⤵
    PID:1164
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --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=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4064 /prefetch:1
    3⤵
    PID:5272
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5540 /prefetch:1
    3⤵
    PID:5380
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1884 /prefetch:1
    3⤵
    PID:5468
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3640 /prefetch:1
    3⤵
    PID:6072
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2088,1692252165987313232,13828104143955945310,131072 --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=2176 /prefetch:2
    3⤵
    PID:5260

C:\Program Files (x86)\StartNow Toolbar\ToolbarUpdaterService.exe
"C:\Program Files (x86)\StartNow Toolbar\ToolbarUpdaterService.exe"
1⤵
PID:4344

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
PID:816

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
PID:2812
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2812 CREDAT:17410 /prefetch:2
  2⤵
  PID:4904

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,0x100,0x104,0xd8,0x108,0x7ff95dba46f8,0x7ff95dba4708,0x7ff95dba4718
1⤵
PID:1940

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2536

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\dnt-firstlook-sntb.exe

Filesize
712KB

MD5
4251d8d58a61737cabc32bee6ad94845

SHA1
a7dd476767117ddb8bf04588976735ce9b3757e2

SHA256
f168a3d9048460ade8e9a99570e04b7298b51d733cfdaa815c7114897ef43edf

SHA512
506aa2ae112bcfed60b3b0b8936d53f6b4ef0954030e65003706ddfa95db28080cdea92fd4f617caae31a47e2ebe6c22e023041d2d7d939956e44e9f6d259238

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsf471D.tmp\Math.dll

Filesize
64KB

MD5
15ae86d7e718db607ced309f37a8b50e

SHA1
2247aaa689b752cfa26833f04b9dc5200ab7f040

SHA256
8b5c4de6d6d07d4e6018d34533ef871060bad5b21bb5726deb655e87171c5a6a

SHA512
8c58348e85d83a67241dd658ec39ba31733aef73630d3a49ff0fdaa7d727800360c4894da692545c5a5d18f25bf07783df3581c9db4448c5cc316f35c606c6c0

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsf471D.tmp\Math.dll

Filesize
66KB

MD5
b140459077c7c39be4bef249c2f84535

SHA1
c56498241c2ddafb01961596da16d08d1b11cd35

SHA256
0598f7d83db44929b7170c1285457b52b4281185f63ced102e709bf065f10d67

SHA512
fbcb19a951d96a216d73b6b3e005338bbb6e11332c6cc8c3f179ccd420b4db0e5682dc4245bd120dcb67bc70960eab368e74c68c7c165a485a12a7d0d8a00328

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsf471D.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsf471D.tmp\timepro.dll

Filesize
20KB

MD5
009dbbdd1ef470dd752c2b73835da3e7

SHA1
f97da6556b24302df8201a092eaa32a80d49064b

SHA256
c1ed8c398108dc56fbb6fd6797c3c9df59447e2a2f198b72a45058124971b09c

SHA512
dbffa0eb830b292e5550eb3f3cfce90f881282652afb0463672ece7eb0946c34a8f75c4852f77b1db3604f0f346d0ed9d9babbad40b41de109e9f5119d555ec5

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsu4690.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

Download Submit
memory/2708-36-0x0000000002190000-0x00000000021AA000-memory.dmp

Filesize
104KB

Download
memory/2708-255-0x0000000003EE0000-0x0000000003EE9000-memory.dmp

Filesize
36KB

Download
memory/2708-51-0x00000000021B0000-0x00000000021B9000-memory.dmp

Filesize
36KB

Download
memory/2864-828-0x0000000073FE0000-0x00000000740F0000-memory.dmp

Filesize
1.1MB

Download
memory/3348-403-0x0000000002FA0000-0x0000000002FBA000-memory.dmp

Filesize
104KB

Download
memory/3348-652-0x0000000003AA0000-0x0000000003AA9000-memory.dmp

Filesize
36KB

Download