e26fb83b1a381cde24201826666079b36705ca41f2627c7b249d3bf0cdfa9f39

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/05/2024, 12:34

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General

Target
$R0/Uninstall AppSetup.exe
Size 137KB
Sample240512-prvd4sfa5w
SHA256 814df9965b7c6367c2fce244f64f1e019e618bc04a8b4f76f7e784587ace55d3
MD5 52529a963e56580fab1d27af83bdaa8d
SHA1 54dd9337f8c34e1a90ddf4d4b8814e6fc0ca9374
SHA512 f4c25b5cdee79b6b04722c1b8de342da17fe4e40c7bc89ba59e71a223536ba49220313ad1ee33aa4375e8c30d8d2bee3eeaff8044580ef14ec377dcf54af6923
SSDEEP 3072:8n77v00hEoDEtau7djErL7q9sQRkRoaH2tvhOEA1RJCir86SrSrv6Ia3E:8740Iqr32sQRkRos2t0EyL+yaU
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2684	Un_A.exe

Loads dropped DLL 7 IoCs

pid	Process
2324	Uninstall AppSetup.exe
2684	Un_A.exe
2684	Un_A.exe
2684	Un_A.exe
2684	Un_A.exe
2684	Un_A.exe
2684	Un_A.exe

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

System Information Discovery
T1082

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2776	tasklist.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2684	Un_A.exe
2776	tasklist.exe
2776	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	tasklist.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2684	2324	Uninstall AppSetup.exe	28
PID 2324 wrote to memory of 2684	2324	Uninstall AppSetup.exe	28
PID 2324 wrote to memory of 2684	2324	Uninstall AppSetup.exe	28
PID 2324 wrote to memory of 2684	2324	Uninstall AppSetup.exe	28
PID 2324 wrote to memory of 2684	2324	Uninstall AppSetup.exe	28
PID 2324 wrote to memory of 2684	2324	Uninstall AppSetup.exe	28
PID 2324 wrote to memory of 2684	2324	Uninstall AppSetup.exe	28
PID 2684 wrote to memory of 2416	2684	Un_A.exe	29
PID 2684 wrote to memory of 2416	2684	Un_A.exe	29
PID 2684 wrote to memory of 2416	2684	Un_A.exe	29
PID 2684 wrote to memory of 2416	2684	Un_A.exe	29
PID 2416 wrote to memory of 2776	2416	cmd.exe	31
PID 2416 wrote to memory of 2776	2416	cmd.exe	31
PID 2416 wrote to memory of 2776	2416	cmd.exe	31
PID 2416 wrote to memory of 2776	2416	cmd.exe	31
PID 2416 wrote to memory of 2620	2416	cmd.exe	32
PID 2416 wrote to memory of 2620	2416	cmd.exe	32
PID 2416 wrote to memory of 2620	2416	cmd.exe	32
PID 2416 wrote to memory of 2620	2416	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall AppSetup.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall AppSetup.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq AppSetup.exe" | %SYSTEMROOT%\System32\find.exe "AppSetup.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2416
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq AppSetup.exe"
      4⤵
      Enumerates processes with tasklist
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2776
  - - C:\Windows\SysWOW64\find.exe
      C:\Windows\System32\find.exe "AppSetup.exe"
      4⤵
      PID:2620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Process Discovery

T1057

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

StdUtils.dll

Path \Users\Admin\AppData\Local\Temp\nst27EC.tmp\StdUtils.dll
Size 100KB
SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
MD5 c6a6e03f77c313b267498515488c5740
SHA1 3d49fc2784b9450962ed6b82b46e9c3c957d7c15
SHA512 9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803
SSDEEP 3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v
MD5 SHA1 SHA512 SSDEEP

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System.dll

Path \Users\Admin\AppData\Local\Temp\nst27EC.tmp\System.dll
Size 12KB
SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
MD5 0d7ad4f45dc6f5aa87f606d0331c6901
SHA1 48df0911f0484cbe2a8cdd5362140b63c41ee457
SHA512 c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9
SSDEEP 192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6
MD5 SHA1 SHA512 SSDEEP

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WinShell.dll

Path \Users\Admin\AppData\Local\Temp\nst27EC.tmp\WinShell.dll
Size 3KB
SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
MD5 1cc7c37b7e0c8cd8bf04b6cc283e1e56
SHA1 0b9519763be6625bd5abce175dcc59c96d100d4c
SHA512 7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f
MD5 SHA1 SHA512

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nsExec.dll

Path \Users\Admin\AppData\Local\Temp\nst27EC.tmp\nsExec.dll
Size 6KB
SHA256 5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962
MD5 ec0504e6b8a11d5aad43b296beeb84b2
SHA1 91b5ce085130c8c7194d66b2439ec9e1c206497c
SHA512 3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57
SSDEEP 96:YjHFiKaoggCtJzTlKXb0tbo68qD853Ns7GgmkNq3m+s:JbogRtJzTlNR8qD85uGgmkNr
MD5 SHA1 SHA512 SSDEEP

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Un_A.exe

Path \Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
Size 137KB
SHA256 814df9965b7c6367c2fce244f64f1e019e618bc04a8b4f76f7e784587ace55d3
MD5 52529a963e56580fab1d27af83bdaa8d
SHA1 54dd9337f8c34e1a90ddf4d4b8814e6fc0ca9374
SHA512 f4c25b5cdee79b6b04722c1b8de342da17fe4e40c7bc89ba59e71a223536ba49220313ad1ee33aa4375e8c30d8d2bee3eeaff8044580ef14ec377dcf54af6923
SSDEEP 3072:8n77v00hEoDEtau7djErL7q9sQRkRoaH2tvhOEA1RJCir86SrSrv6Ia3E:8740Iqr32sQRkRos2t0EyL+yaU
MD5 SHA1 SHA512 SSDEEP

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