2564e6fcff82ffdd9e6bdcd89e15cf1b6389faaae2279975326eac70dedffffb

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-04-2024 15:59

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General

Target

Uninstall.exe
Size

57KB
MD5

3db1d34674bdfab493aca0b6380d3639
SHA1

05a2b02b653cd9efd98f1e276a266efaca29c5ae
SHA256

426e613848dfa42b08e66aaa03a7c490a8832fc113f610d77cb29a87b7a5ea2e
SHA512

d459cd9655cd5056b2700da36a4eb1738c7c2b961de4bc8542c479d46952c096e9a3d21263b24da87a8409eed889018b94e1238f6d938b7355e56ed8eab8af23
SSDEEP

1536:aU+dcy3fxBk9UmZHs/hc0gdLeAyNxdDEaQttySC:aNzPHk9Mpc0ceAYjme

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2896	Un_A.exe

Loads dropped DLL 2 IoCs

pid	Process
2648	Uninstall.exe
2896	Un_A.exe

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

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral9/files/0x002a000000015c3c-2.dat	nsis_installer_1
behavioral9/files/0x002a000000015c3c-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2896	Un_A.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2896	2648	Uninstall.exe	28
PID 2648 wrote to memory of 2896	2648	Uninstall.exe	28
PID 2648 wrote to memory of 2896	2648	Uninstall.exe	28
PID 2648 wrote to memory of 2896	2648	Uninstall.exe	28

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2648
- 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\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2896

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

\Users\Admin\AppData\Local\Temp\nsj9A3F.tmp\LangDLL.dll

Filesize
5KB

MD5
ea60c7bd5edd6048601729bd31362c16

SHA1
6e6919d969eb61a141595014395b6c3f44139073

SHA256
4e72c8b4d36f128b25281440e59e39af7ec2080d02e024f35ac413d769d91f39

SHA512
f9dc35220697153bb06e3a06caf645079881cb75aed008dbe5381ecaf3442d5be03500b36bbca8b3d114845fac3d667ddf4063c16bc35d29bbea862930939993

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

Filesize
57KB

MD5
3db1d34674bdfab493aca0b6380d3639

SHA1
05a2b02b653cd9efd98f1e276a266efaca29c5ae

SHA256
426e613848dfa42b08e66aaa03a7c490a8832fc113f610d77cb29a87b7a5ea2e

SHA512
d459cd9655cd5056b2700da36a4eb1738c7c2b961de4bc8542c479d46952c096e9a3d21263b24da87a8409eed889018b94e1238f6d938b7355e56ed8eab8af23

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