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
MD5

52529a963e56580fab1d27af83bdaa8d
SHA1

54dd9337f8c34e1a90ddf4d4b8814e6fc0ca9374
SHA256

814df9965b7c6367c2fce244f64f1e019e618bc04a8b4f76f7e784587ace55d3
SHA512

f4c25b5cdee79b6b04722c1b8de342da17fe4e40c7bc89ba59e71a223536ba49220313ad1ee33aa4375e8c30d8d2bee3eeaff8044580ef14ec377dcf54af6923
SSDEEP

3072:8n77v00hEoDEtau7djErL7q9sQRkRoaH2tvhOEA1RJCir86SrSrv6Ia3E:8740Iqr32sQRkRos2t0EyL+yaU

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

\Users\Admin\AppData\Local\Temp\nst27EC.tmp\StdUtils.dll

Filesize
100KB

MD5
c6a6e03f77c313b267498515488c5740

SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15

SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

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\Users\Admin\AppData\Local\Temp\nst27EC.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

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\Users\Admin\AppData\Local\Temp\nst27EC.tmp\WinShell.dll

Filesize
3KB

MD5
1cc7c37b7e0c8cd8bf04b6cc283e1e56

SHA1
0b9519763be6625bd5abce175dcc59c96d100d4c

SHA256
9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

SHA512
7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

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\Users\Admin\AppData\Local\Temp\nst27EC.tmp\nsExec.dll

Filesize
6KB

MD5
ec0504e6b8a11d5aad43b296beeb84b2

SHA1
91b5ce085130c8c7194d66b2439ec9e1c206497c

SHA256
5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962

SHA512
3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57

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\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
137KB

MD5
52529a963e56580fab1d27af83bdaa8d

SHA1
54dd9337f8c34e1a90ddf4d4b8814e6fc0ca9374

SHA256
814df9965b7c6367c2fce244f64f1e019e618bc04a8b4f76f7e784587ace55d3

SHA512
f4c25b5cdee79b6b04722c1b8de342da17fe4e40c7bc89ba59e71a223536ba49220313ad1ee33aa4375e8c30d8d2bee3eeaff8044580ef14ec377dcf54af6923

Download Submit