bacf1ae72d809382dc9ceba302a3f1fc91542620767e9d34e5caab2a2619e133

Analysis

max time kernel
141s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
15-01-2024 05:41

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General

Target

5c476b47ecc73dbd3412c5d37676f6f9.exe
Size

2.5MB
MD5

5c476b47ecc73dbd3412c5d37676f6f9
SHA1

5c5bb58226cc903fb5b230d2fe0359f017dd1772
SHA256

bacf1ae72d809382dc9ceba302a3f1fc91542620767e9d34e5caab2a2619e133
SHA512

f713ee497720206a33880186fef7eec169911b258c052b7b9e0e4b3a9f259e0ed4ebf4f4249449b7068870ea167fb5558287c88136a9bdd6a1655e98fec76f1a
SSDEEP

49152:j0Ii8g9VPJlLQBkK8q3ws6krWiSERpTT8TnrKPMaU9R0Q02p+4:wIi8g9BMBLVWixrsTOvIJ

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2192	TeamViewer_.exe

Loads dropped DLL 7 IoCs

pid	Process
1256	5c476b47ecc73dbd3412c5d37676f6f9.exe
2192	TeamViewer_.exe
2192	TeamViewer_.exe
2192	TeamViewer_.exe
2192	TeamViewer_.exe
2192	TeamViewer_.exe
2192	TeamViewer_.exe

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1256-0-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral1/files/0x0007000000015c93-4.dat	upx
behavioral1/memory/1256-6-0x0000000002EC0000-0x0000000002F09000-memory.dmp	upx
behavioral1/files/0x0007000000015c93-9.dat	upx
behavioral1/memory/2192-11-0x0000000000400000-0x0000000000449000-memory.dmp	upx
behavioral1/files/0x0007000000015c93-12.dat	upx
behavioral1/memory/1256-10-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral1/files/0x0007000000015c93-8.dat	upx
behavioral1/memory/2192-226-0x0000000000400000-0x0000000000449000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2192	TeamViewer_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1256 wrote to memory of 2192	1256	5c476b47ecc73dbd3412c5d37676f6f9.exe	28
PID 1256 wrote to memory of 2192	1256	5c476b47ecc73dbd3412c5d37676f6f9.exe	28
PID 1256 wrote to memory of 2192	1256	5c476b47ecc73dbd3412c5d37676f6f9.exe	28
PID 1256 wrote to memory of 2192	1256	5c476b47ecc73dbd3412c5d37676f6f9.exe	28

C:\Users\Admin\AppData\Local\Temp\5c476b47ecc73dbd3412c5d37676f6f9.exe
"C:\Users\Admin\AppData\Local\Temp\5c476b47ecc73dbd3412c5d37676f6f9.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1256
- C:\Users\Admin\temp\TeamViewer\Version5\TeamViewer_.exe
  "C:\Users\Admin\temp\TeamViewer\Version5\TeamViewer_.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2192

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\nsy4378.tmp\environment.ini

Filesize
661B

MD5
d49491c7ba7bd565e1b8ff473cd84c8e

SHA1
2522272cf01af17f8ace15a29759f7629ebdc94e

SHA256
0be1c22c6f540d98cd55d7f434f57aedffc67a19df4e4957f75eb034a7b3d9bb

SHA512
2207da44794bd8b8ed1161a0a1990d13824c91b651711d20fbd14769f898a95168884e217f24465b309901215961f3bcb287214b61c5ce2fbc020e8e21cb7b3c

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsy4378.tmp\host.ini

Filesize
975B

MD5
69a491a30f8fd22d3210847d54274a19

SHA1
7e19eb2b1424bb487708f91001d0a001e214ebb8

SHA256
49a8ab22496032d8286c7fa71d1e5fc3f13079572d45e4140d1b24be57202b53

SHA512
4ac8b38c91eb466cc31e8256cd7a59bf10ff088a3ff233510277be969134c7da2c784fb1254323c2a3e502d2daa98561c160d321a153914b65f97c6bec79207b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsy4378.tmp\start.ini

Filesize
1KB

MD5
1f32f636bcedeb37a7913e76fc000a51

SHA1
5232af60428db5dc5b32bd218330966cc71bf06d

SHA256
43edfbd7e7461241b61aadccf1629bf0694501b675433544b44a84866a3f5226

SHA512
2a1509abf3ea24f35db5e9b123f23dfdb9e9f4c83b50a12a9821b7323731bfedd8cd8967931433b62d937218aac50fb34772597ba7df17aa214d878b6c7bd1f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsy4378.tmp\start.ini

Filesize
1004B

MD5
3b52a6054afbd25bd44d2408cb0434d1

SHA1
5d625fdeaad64f68d34c68dd1c34c63baf4a71f2

SHA256
d47b487080592c3680f94d60721e8c75fc0f728d7c039dca4c45a5ce4fbf5e46

SHA512
d5ffb7e9aaad4cee74758b77be84ab6aa5366a6d01c9316f1b5d79bb09bb36c762a1aa857e8c5570997d925d7198be6447a8663e721b46f0250008a86b99c6ba

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsy4378.tmp\start.ini

Filesize
983B

MD5
cc38fe264db13629dbac09fb999f4f7f

SHA1
51db7d5f9fa53ae98856575b55c4d69ee0cfc6b0

SHA256
0ebbe20b46d7cb70a57c730bf65f73c219c03a0bcffc36fa7a4adefd2623141d

SHA512
fbb4ef383b4a4b18f0fac1dede037213ffd16f8bd9a98e4d326817953b2b2ce577f4a5696cddbbf4a84a595cf1dc85e4b0501cfb988eac909f698789e73033e5

Download Submit
C:\Users\Admin\temp\TeamViewer\Version5\TeamViewer_.exe

Filesize
263KB

MD5
7013cf59244be19076328d7ce9b29220

SHA1
3b37e50d836f201e7a74366c95b5d1a26c40aac7

SHA256
01cd322c7f3c86609bd71c3e3b4efae273c2bc40826c47f8befb4abcbdbfa9bd

SHA512
0534f08c1a659413482fbc0601ef360645834f4c831befc950a2b2c15e5e89c6f334f475545a619249d1f8c9ecfaebe9f08de249cfd2dd1a6aff40ce386d3f60

Download Submit
C:\Users\Admin\temp\TeamViewer\Version5\TeamViewer_.exe

Filesize
327KB

MD5
e4c06a19aff9d315c829cd2188678499

SHA1
bd76c76935270a3b826be2620c426e5764c94d36

SHA256
e129b36461ae4994e322a90a9903896525df93daf83975b501e4bad9907e786f

SHA512
2373f915d1c0ceb8eee79620c4740582c4ed399d2c0d34b10fe7883d9cb7bc1463e228a88cbb9e6f8d901827f6729afcd96b77149646d9ea2a299e2d81d95fd8

Download Submit
C:\Users\Admin\temp\TeamViewer\Version5\TeamViewer_.exe

Filesize
241KB

MD5
93578b3fac4ebfea802c235fb6652862

SHA1
56448d5f80286f28ca71526b5d45759c81056d39

SHA256
efc3be99138663dd0cf3e0a6d58f097c6b8ac2353d5980483f46677076db624b

SHA512
82428214736970cd3dfd56247a22972c815fab96a55e80638a39680899c7d88013eae0f953ec933c8cf86a027f1320a3e94cc7178897c9e614ac92157fc22640

Download Submit
\Users\Admin\AppData\Local\Temp\nsy4378.tmp\InstallOptions.dll

Filesize
14KB

MD5
0dc0cc7a6d9db685bf05a7e5f3ea4781

SHA1
5d8b6268eeec9d8d904bc9d988a4b588b392213f

SHA256
8e287326f1cdd5ef2dcd7a72537c68cbe4299ceb1f820707c5820f3aa6d8206c

SHA512
814dd17ebb434f4a3356f716c783ab7f569f9ee34ce5274fa50392526925f044798f8006198ac7afe3d1c2ca83a2ca8c472ca53fec5f12bbfbbe0707abacd6b0

Download Submit
\Users\Admin\AppData\Local\Temp\nsy4378.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nsy4378.tmp\TvGetVersion.dll

Filesize
13KB

MD5
eb062eb8b2c498c03b1542ccde87ad90

SHA1
44432fa3d16baa6bd5243fab7187204d4c0a2166

SHA256
81888a1166ae594aef28084d00c5d59e899e8f0b6bc632f99df08fba3ad77c3b

SHA512
e21af0d46cb71ecbe764915fc9ef67ebbe3c0dd428b4816adb7e966aafb761aa72248a21392236bf4ce068be855e9a43f3ccf96db612edef3cb17e1a10afe4e1

Download Submit
\Users\Admin\AppData\Local\Temp\nsy4378.tmp\UserInfo.dll

Filesize
4KB

MD5
1e8e11f465afdabe97f529705786b368

SHA1
ea42bed65df6618c5f5648567d81f3935e70a2a0

SHA256
7d099352c82612ab27ddfd7310c1aa049b58128fb04ea6ea55816a40a6f6487b

SHA512
16566a8c1738e26962139aae893629098dc759e4ac87df3e8eb9819df4e0e422421836bb1e4240377e00fb2f4408ce40f40eee413d0f6dd2f3a4e27a52d49a0b

Download Submit
\Users\Admin\temp\TeamViewer\Version5\TeamViewer_.exe

Filesize
357KB

MD5
844d5e0e0f3cbca18a733e148bacd36a

SHA1
bedeb9bafb35e9bb1889956f769e567f3d700426

SHA256
77b0a975b68693f255fa901f76fd8b65e38c96b547586812f954a5fa0741e0ac

SHA512
d9da73624a8f8ae3e96e991cc228f107f7290f8001c33a2b5f4846753f9a758bf144ca584f7510f057f1ead9cc203045e463aef40d05bfc573f6ed58e1e14451

Download Submit
memory/1256-10-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1256-0-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1256-6-0x0000000002EC0000-0x0000000002F09000-memory.dmp

Filesize
292KB

Download
memory/2192-11-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2192-226-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download