479f024e77b53300da8dd0e0d0243dca32af5c1aefaa2f254127bc59f2901d93

Analysis

max time kernel
117s
max time network
129s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
07-07-2024 10:50

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General

Target

$R0/Uninstall TidyMe.exe
Size

523KB
MD5

7a8adecaedf31fe2a7ed8de507be26e0
SHA1

b8f1f38a719a084961ef5d25283740c8f9e02ee7
SHA256

e339abae3f1f1a5772f46b9bfed1f7e7bd0a4688522a98a78a19f82f5ffccfbf
SHA512

8aaf9cb97d8ac5953770708fd1ba5fb76a26f2c06f9d78333a2c35bbf0431a174733b7458767058587ebfd1e58590236cd2ef3d76cc26160917227b5ddccbc08
SSDEEP

3072:Gn77v00hEoDEtauEORkUD3Xv3hbxzl8SM/kWTS0OnK5XTQcaH2tvhOEA1RJCir8x:G740I1K57s2t0EyL+ya/

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2492	Un_A.exe

Loads dropped DLL 5 IoCs

pid	Process
2352	Uninstall TidyMe.exe
2492	Un_A.exe
2492	Un_A.exe
2492	Un_A.exe
2492	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
2788	tasklist.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2492	Un_A.exe
2788	tasklist.exe
2788	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2788	tasklist.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2492	2352	Uninstall TidyMe.exe	30
PID 2352 wrote to memory of 2492	2352	Uninstall TidyMe.exe	30
PID 2352 wrote to memory of 2492	2352	Uninstall TidyMe.exe	30
PID 2352 wrote to memory of 2492	2352	Uninstall TidyMe.exe	30
PID 2492 wrote to memory of 2904	2492	Un_A.exe	31
PID 2492 wrote to memory of 2904	2492	Un_A.exe	31
PID 2492 wrote to memory of 2904	2492	Un_A.exe	31
PID 2492 wrote to memory of 2904	2492	Un_A.exe	31
PID 2904 wrote to memory of 2788	2904	cmd.exe	33
PID 2904 wrote to memory of 2788	2904	cmd.exe	33
PID 2904 wrote to memory of 2788	2904	cmd.exe	33
PID 2904 wrote to memory of 2788	2904	cmd.exe	33
PID 2904 wrote to memory of 2168	2904	cmd.exe	34
PID 2904 wrote to memory of 2168	2904	cmd.exe	34
PID 2904 wrote to memory of 2168	2904	cmd.exe	34
PID 2904 wrote to memory of 2168	2904	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall TidyMe.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall TidyMe.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2352
- 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:2492
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq TidyMe.exe" | %SYSTEMROOT%\System32\find.exe "TidyMe.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2904
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq TidyMe.exe"
      4⤵
      Enumerates processes with tasklist
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2788
  - - C:\Windows\SysWOW64\find.exe
      C:\Windows\System32\find.exe "TidyMe.exe"
      4⤵
      PID:2168

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

C:\Users\Admin\AppData\Local\Temp\nsjA536.tmp\StdUtils.dll

Filesize
100KB

MD5
c6a6e03f77c313b267498515488c5740

SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15

SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

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\Users\Admin\AppData\Local\Temp\nsjA536.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

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\Users\Admin\AppData\Local\Temp\nsjA536.tmp\WinShell.dll

Filesize
3KB

MD5
1cc7c37b7e0c8cd8bf04b6cc283e1e56

SHA1
0b9519763be6625bd5abce175dcc59c96d100d4c

SHA256
9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

SHA512
7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

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\Users\Admin\AppData\Local\Temp\nsjA536.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
523KB

MD5
7a8adecaedf31fe2a7ed8de507be26e0

SHA1
b8f1f38a719a084961ef5d25283740c8f9e02ee7

SHA256
e339abae3f1f1a5772f46b9bfed1f7e7bd0a4688522a98a78a19f82f5ffccfbf

SHA512
8aaf9cb97d8ac5953770708fd1ba5fb76a26f2c06f9d78333a2c35bbf0431a174733b7458767058587ebfd1e58590236cd2ef3d76cc26160917227b5ddccbc08

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